So I wrote them an email and asked for quote on size 54 frame. Got the following answer:
"Thanks for your inquiry about the LCR017-D size 54cm,
Frame set including frame+ seat post (SP03) + fork + handlebar (HBR13 supper light handlebar)+ seat clamp+ head set+ front & rear thru-axle, and two hangers for rear derailleur.
Color: UD matt, (painting customized is acceptable with extra cost.)
Supper light version price is USD$805/set including shipping cost and all taxes to Lithuania, loading time is about 70 days,
Normal weight version price is USD$763/set including shipping cost and all taxes to Lithuania, loading time is about 50 days,
if change the handlebar to normal weight handlebar HBR11, cost can be cheaper about USD$20"
So it seems like the frames are built to order and multiple levels of specs are available. 800 bucks all in for a handlebar, thru axles and a 900g frame isn't so bad