i know you guys will prolly have a field day with this, but, gotta question.

on the area behind the seats i'm prolly gonna be putting an 'X' between the B pillars. because of room, i had to put the B Piliar where i did because of other constraints. i was thinking of putting some bends in my 'X' to give me an extra few inches of space.

am i gonna loose strength by doing that??

also, of the 3 bars back there, which should be kept as the first piece?? one of the diagonals??

every bend makes the tube lose strength. It should be fine unless you plan on high speed rolls, then gusset the bend for strength. I would have one of the diagonals as the first piece, then the other.