Guess I will bust every rib off and re glue them.
I can't quite get what you are describing, are the individual ribs pitched up or down relative to each other? In other words, to get it straight, you would have to force the spar out of shape?
If so, that is not a unusual situation with die-cut kits, the spar slots usually aren't that accurate, and you usually have to shave and shim the spar slots so it lays down flat without stressing something and before doing the final gluing. The tolerance on those slots to get, say, 1/16th" worth of alignment at the TE might be .010-.015" at the slot.
Given that, what sort of glue did you use? Ambroid or other model cement, you can easily soften with acetone and remove those that need to be adjusted. Once out, use a single-edge razor blade to shave the slot, and then shim it on the other side . Get them all to line up, then glue it.
You might be able to get it loose with aliphatic. With cyanoacrylate, you can hypothetically get it loose with debonder, the problem is that it might not bond again with CYA due to the residue of the debonder. In that case, I would use a razor-blade (broken in half double-edge, if possible - really thin) and cut right down the bond line, vertically, to slice it loose. It will almost always wind up slicing through on the spar side of the joint, but the difference should be minimal, and you were going to either cut or shim it anyway. Do what you need to, and put it back.
I am a little unclear on the order of operations here, I would probably build the entire TE up with the shear web, flat on the table, then apply that to the tail of the ribs, and that will hold it straight while you glue the ribs to the spars.
I would have stack-sanded the ribs with particular attention to the spar slots, TE, and LE wood, and then worried about the curved part afterward.
Bear in mind I haven't built any kit straight from the parts and plans since 1979, so I would do it my way, not necessarily what Brodak would have done it.
Brett
p.s. I usually glue the spars to the ribs as one of the last operations. That's also how it says to do it on the Nobler plans - after the TE, LE, LE Sheeting, etc, block it straight and then glue the D-tube spar to the ribs. There are two reasons for that, one, the one we see here, and second, if you glue the ribs to the spar first, all the spar slots are on the same side, so when your ambroid shrinks, it will pull in a bunch of dihedral as the slots close up.
Brett