Did you have to do a lot of trimming or does it shift well as is with the 10-51 cassette?  I have one bike with a full SLX setup, including SLX microspline hub, and I have to say I am not a fan of Shimano drivetrains.

It shifts well (brand new at this point).  I researched before deciding to do Sramano drivetrain and others said it worked just fine.

Love the color! I got my frame yesterday. Really happy with the frame and I agree that it does look pretty sick. So far I only have a rear shock and the fork will be here today.

Yes, please post a build list. One thing I'm curious about is what shock mounting hardware you went with? I measured my frame at 29.5mm x8mm. I read a few pages it should use a 30mmx8mm

Mounting hardware was 30mm x 8mm, purchased from bouncecycles on eBay (located in UK).  I also bought the DU Bush Tool (LBS said that tool was necessary to install).

Build lists:

Size L (teal) - rider 6'0"
Shimano SLX 10-51 cassette
Shimano XTR chain
Shimano SLX 32T chainring
Sram GX AXS shifter 12-speed and rear derailleur (LOVE IT!!)
Shimano XT 4-piston brakes
Shimano XT rotors (203mm front; 180mm rear)
DIYCarbon Bikes wheelset (29er boost spacing front and rear, DT Swiss 350 hubs, 37mm external/31mm internal carbon rim)
Maxxis Minion DHF 3C Maxx Grip 2.5 29er front; DHR II EXO Maxx Terra 2.4 29er rear
OneUp 180mm dropper post
Wolftooth light action dropper lever
Fox 34 Factory 140mm, 51mm offset (Carbonda says do 51mm offset)
Fox Factory DPX2 185mm * 55mm trunnion (135mm travel)
RaceFace Next R 800mm carbon handlebar, 35mm diameter, 10mm rise
RaceFace Turbine R stem 50mm x 35mm
Ergon SM Pro Men's saddle

Size M (black) - rider 5'5" and growing
Shimano SLX 10-51 cassette
Shimano XTR chain
Shimano SLX 32T chainring
Shimano XT shifter 12-speed
Shimano XT derailleur 12-speed
Shimano XT 4-piston brakes
Shimano XT rotors (203mm front; 180mm rear)
DIYCarbon Bikes wheelset (29er boost spacing front and rear, Kooza hubs, 37mm external/31mm internal carbon rim)
Maxxis Minion DHF 3C Maxx Grip 2.5 29er front; DHR II EXO Maxx Terra 2.4 29er rear
OneUp 150mm dropper post
Wolftooth light action dropper lever
Rock Shox Pike Select 140mm, 51mm offset (Carbonda says do 51mm offset)
Rock Shox Deluxe 185mm * 55mm trunnion (135mm travel)
RaceFace Aeffect R 780mm handlebar, 35mm diameter, 20mm rise
Mondraker onoff KR stem 30mm x 35mm
Selle Italia Boost EVO Superflow saddle

I got the chainstay protector from Santa Cruz ($10 + shipping) and had it cut to fit the chainstay.

Did a few miles this evening, bike feels great.

Finish

Parts:

Carbonda Fm1001 "M"
RS Lyrik Ultimate 140mm
RS Super Deluxe 185x55
RS Reverb AXS 150x30,9mm and Trickstuff seat clamp
Sram XX1 AXS
Magura Mt7 polish with  Mt5 HC1 levers and Dächle UL 203/180mm inkl titanscrews
Newmen Sl31,8 Handelbar/ Stem
Deathgrip Ultra Soft thin
CrankBrothers Mallet E Pedals
Dt Swiss XMC1200 30mm
Maxxis Assegai Maxxgrip Exo+ and Dissector Maxxterra EXO mit Taunus Insert mounted with 100ml milk

Where did you find the black Downtube/bottom bracket frame protector?

The head tube is NOT tapered.  What does this mean for durability of using a tapered fork even with a compatible headset?  And, which headset?