Saw this today-clamp appears somewhat adjustable, but hoping somebody else was brave enough to try these first ;-)

Not a whole lot of me too resellers so far.

https://www.aliexpress.us/item/3256806076922208.html?spm=a2g0o.detail.pcDetailBottomMoreOtherSeller.24.12fb6b9bh6VNR5&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.40000.326746.0&scm_id=1007.40000.326746.0&scm-url=1007.40000.326746.0&pvid=a1b39324-da73-45d6-b1e1-7e355b283c0a&_t=gps-id:pcDetailBottomMoreOtherSeller,scm-url:1007.40000.326746.0,pvid:a1b39324-da73-45d6-b1e1-7e355b283c0a,tpp_buckets:668%232846%238115%23821&pdp_npi=4%40dis%21USD%2150.42%2150.42%21%21%21363.52%21363.52%21%40210384cc17145026510915382e89fe%2112000036520146018%21rec%21US%211699911272%21&utparam-url=scene%3ApcDetailBottomMoreOtherSeller%7Cquery_from%3A#nav-review

Finally arrived on the weekend-same geometry chart as Velobuild's R066 and definitely inspired by the Canyon Ultimate frameset if not a 1:1 copy.

Seller communication was great.  Not clear from their Ali listing, but a headset was included, as was an extra derailleur hanger.

Paint quality and tube insides look good-BB86 dims are within a few hundredths on my digital calipers.  Tire clearance is enormous; Conti GP in 25c on a 17mm inner rim had plenty of space and it definitely looks like a 28 would fit if it clears the rim brakes.

In size L, frame weight worked out to 1135 grams (seller shows two figures in their listing-one for 1068 +/- 40 g, and one for 828 +/- 50g), uncut fork 350, uncut seatpost 165.

Given the frame weight, I'm hoping for tank like durability; still down almost 600 grams from a 2006 Ridley alu/carbon stay frame set.

Pictures to follow.