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...