Frame, handlebars, and seat post, garmin holder all Winspace in the kit.

Ali Express for
Ultegra pedals
Ryet 3D saddle
Lizard Skins bar tape
RideNow TPU tubes
Pirelli Zero Road 30mm tyres
Carbon water bottle cages

Velo9 CC45 rims

Hambini BB. (you have to get one of these things. They are crazy. Do not even notice the pedals going around)

Got a deal on Facebook with a bike builder who had a cheap Dura Ace groupset

Took the 165mm spider arm power meter off my old bike.

Adventure Cycles Stores
ScottM Bike Store
LEXON Official Store
TOP AE Mail Store

Will be a little while for the build. The 9Velo wheels have to get built.

Everything ordered.

• 9Velo wheels. Used the Hambini 10% off.
  Hambini BB
  Ali Express for Lizard Skin bar tape, Ryet 3D saddle, carbon bottle cage holders, TPU tubes, pedals, chain stay protector
  Facebook market place got a brand new Dura Ace 9200 groupset for half price after an aborted build by a guy
  Transferring the 165 cranks off my BMC and will put the 170s back on to sell it

tyres the only thing I bought local and found a 10% coupon for P7 Pirellis.

This too is the same pricehttps://www.kia.com/au/cars/picanto/features.html

Check out Merlin cycles. They have the best prices on shimano and actually have sales on the Di2 stuff.  Usually their groups come with a crank but you could always sell it. They rival Ali express in price and for me in the US at least the shipping is like 2 days vs a a few weeks.  Plus it is all legit and covered by warranty since it is an actual shop selling it.

Otherwise just search Ali express ad piece together what you want. Most sellers tend to have and then not have stock so I have to source from different ones each time I am looking.

Yeah good point. Been waiting 4 months for Merlin to get 165mm cranks. So I guess I could just suck it up and sell the 170s when they arrive

My First Roadbike Build... just a try...

Items List along the Store name in Aliexpress

Dogma F size46.5 NebulaSun  (Ride Love) $503.75
https://www.aliexpress.com/item/1005004352240649.html

Groupset R7020 GS 11-speed (Yiwu) $327.99
https://www.aliexpress.com/item/1005005412227135.html

Cogs 11-34T (Anracee)
https://www.aliexpress.com/item/32824377142.html
Chain HG701 (Anracee) $75.96 (includes cogs)
https://www.aliexpress.com/item/32721995091.html

BBR60 (Anracee) $15.81
https://www.aliexpress.com/item/1005006603776104.html

Crank PES 505 170mm (Magene) $276.33
https://www.aliexpress.com/item/1005005506880823.html

Chainring Zrace 50-34 (Zrace) $22.13
https://www.aliexpress.com/item/1005005881248056.html

Disc Zrace RT-RX 140mmF 160mmR (Zrace) $51.82
https://www.aliexpress.com/item/1005006117053873.html

Clear Protection Sticker(Digitaling Store)
https://www.aliexpress.com/item/1005006804223120.html
Pads Zrace M1 XG (Digitaling Store) $6.40 (includes Clear Sticker)
https://www.aliexpress.com/item/1005006841395394.html

Wheelset CSC 50mm Ratchet 36T 21mmID 28mmOD (CSC) $306.28
https://www.aliexpress.com/item/1005006412487338.html

TPU Cyclami 26G (bikego) $9.56
https://www.aliexpress.com/item/1005005979668761.html

Tire Kenda KountachElite 28C (beleza) $31.55
https://www.aliexpress.com/item/1005005920703180.html

Internal Foam Damper (outdoorTime) $5.69
https://www.aliexpress.com/item/1005006125129217.html

Cable Housing Shimano SUSY60098022 (chaser) $32.32
https://www.aliexpress.com/item/32863892245.html

SPD SL Carbon finish (Sava) $24.49
https://www.aliexpress.com/item/1005004702217579.html

Propel Bottle Cage (bicycle factory) $16.24
https://www.aliexpress.com/item/1005006875247789.html

Saddle Walgun Selle Italia SLR (yohoo-bike) $24.46
https://www.aliexpress.com/item/1005004730284295.html

brake fluid (ziyaco) $7.23
https://www.aliexpress.com/item/1005005450452948.html

corima sticker (readu) $13.96
https://www.aliexpress.com/item/1005004058267231.html

computer mount (cycling official storage) $10.25
https://www.aliexpress.com/item/1005005830861482.html

Bartape OG Evkin BT-001 (manufacturer direct) $6.77
https://www.aliexpress.com/item/1005005644956337.html

Total Costs: $1,768.99 + 105.56(duties) = $1,874.55
final weight: 8.04kg (includes 2bottle cages, no pedals, no computer mount)
full build: 8.35kg

hope it will last a thousand miles...

issues on the build process;
1. Routing the FD cable is a bit of problem but able to run on the bottom of BB.
2. BB thread is clean unlike the many VBR218 issues.
3. I forgot to consider the expander thickness on top of steerer tube so I do cut twice
4. I put a bit of spacer in the base of rear brake instead of sanding the inner side to avoid delaminating the paint.
5. I overtighten(5nm) my seatpost bolts at first try that left some paint crack i hope it's a not a problem later on. It's okay now, not sliding down anymore.
6. Bleeding the brakes and alignment is one hell of experience 
7. Aligning the RD is easier than the FD

initial ride(20kms) feel is stiff and maybe i am too excited to push which i felt lighter than my all-rounder bike(7.8kg SL4 copy )... let me try to some hill climb to compare...

Thanks for posting those links to the groupsets. Been looking for guidance. Well done