Latest Argon18 Krypton/Pro carbon in L is 605mm stack. Reach is 395mm, so you'd have to drop in a longer stem to suit.
That stack and reach is with the standard front end setup.

Complete builds seem to be Sram options only e.g. R+A Cycles has some L models in stock.
Krypton Pro frameset-only option is available, but its rather exxy.