I will post some pictures later but I have been meaning to share my experience with my cx build.
Cyclocross is my primary discipline, and for this year I wanted a pit bike. I too wanted the true CX geometry with short wheelbase and high bottom bracket. I landed on the GR029/FE-806/CX028 frame. I put on SRAM force because that is what I like and I race single speed with the zip tied shifter. I purchased through ebay store
https://www.ebay.com/usr/yxbikes. It included headset and thru axles (although the fork doesn't have a threaded insert, so it uses a quick release style thru axle), which added a level of simplicity. It came with the flyxii top cap. The crown race was a pretty snug fit, and required a pvc pipe to push it into place (
https://nuxx.net/blog/2014/02/09/pvc-1-5-crown-race-setter/).
The geometry is a bit funky. I really wanted to get the stack down to a certain size. This frame has a high stack and short reach. So a compromise was required to get the stack where I wanted. I sized down, thinking I could run a bit longer stem. This worked, but I will say, it puts your pressure vector on the front tire in a less desirable angle while cornering off camber. I have since put back on a shorter stem.
The build went very smoothly as it uses those clip in cable stops. BB shell threads don't look pretty but they were fine. I paired this with a set of 40mm superteams with onirii rotors (CD-02), which aren't great and have a slight creak to them, but serve the purpose just fine. Other items include, Ryet 3D saddle, Uno 100mm stem, RXL SL 38mm, Elita One 27.2x350mm seatpost, and Bolany 11-36 cassette. Basically a full chiner build with Sram Force.
Total Weight came in with pedals and bottle cages just under 18 lbs.
When the season rolled around, I raced it instead of my A bike, and I love it. The bike rips corners and having a true CX geometry and sizing down a bit has worked really well for me. I'd highly recommend this frame if you are racing CX but just be aware of the stack/reach combo. I much prefer it over longer gravely type frames being used in cx.