Just picked up a Niner BSB 9 RDO frameset this week. Now just have to wait for the parts to arrive over the next week.
Build plan:
Rival 1x11, Rival Crank (42), Sram PF30 BB, Rival RD Type 3, Sram 1130 11-42 cassette, Sram 1130 11 sp chain, Jagwire cables/housing
TRP Spyre brakes, Shimano 160 rotors and adapters
Stan's Grail on Speedtuned hubs, Tires TBD
Ritchey WCS carbon cockpit, Fizik bar tape
27.2 Seatpost is TBD
Fizik Arione saddle