Make sure of simple stupid stuff not uncommon to come out in a handful of hundred miles. Maybe you're as screwed as you think- but sure hate to tear apart the motor and stare at fresh bearings, tighten the flexplate bolts properly when it goes back in, and have it all go away. Been there too often. No fun diagnosing a no start for too many hours before realizing it doesn't have gas. (any is the answer on too many)
