Congrats on doing your trip! I'm inspired...I might have waited too long for a camping trip for the season, the nights are cooooold....but I'm inspired. We'll see what I can come up with and when. Way to go!
Sit bones = ~135 mm, saddles that work ~ 155cm/6.1 in wide
2003 da Vinci (custom road/all-rounder)/Terry Butterfly Ti
1994 Gary Fisher Nirvana (vintage MTB/commuter)/Terry Butterfly Chromoly
1991 Terry Symmetry (NOS frame/fork, project in progress)
1973 Raleigh Super Course (project in progress)