4L60E or 200-4R, full drive train swap.

[BOHICA-Chevy68]

So here is the dilemma, I have a 67 that I am doing a frame up on. Its going to be our (my wife and I) weekend worrier, "how" truck. Its not going to be original by any means. We're going to do a very subtle chop on the top, shave the drip rails, shave the doors, disk brakes, rack and pinion, and some other fun stuff. For the engine I was given a 94 chevy 1500 for $0. Its complete from the front bumper to the back and comes with a 350 and a 4L60E transmission. I also have a spare 200-4r sitting that I was thinking of rebuilding for it as well, but beefing it up of course. Now the truck has the wiring harness and computer and every nut and bolt on it, the frame was cracked from it being loaded and hitting a nice bump. So are their any other benefits to the 200 besides the first gear and straight length swap? I know that the 4L60E is longer and will require a drive shaft job on it. What would you all do if you were presented with the option. Keep in mind I have both transmissions and a complete drivetrain, that was free so I the budget can shift a bit to the rebuilds of the transmissions for strength.