I bit the bullet as well. Ordered XL matte light pink from SPcycle today with Valentine day’s coupons + Tagoola 50mm XRLP wheelset + Elita one no setback seatpost + KEOS 46t aero chainring.
Tires TBD, crankset will be wide version of either Red or Force E1 (depending if I want to play over double for 100g less and more bling), 105 di2 groupsetand Favero MX pedals. Will try zrace xg4 brakes instead of 105s. From weightweenies forum the RD does support 45t cassette so will try to use it with XT 10-45. Will report how it goes, but thats probably few month away.
Note - frame requires minimum 12cm insertion, hence previously considered L was not an option unless with 450mm seatpost.