6 speed and a new clutch
you can pick up a T-56 with 5k miles for under a grand
you need more then a tranny and clutch. youll need a new cross member along with a drive shaft, you should also get a adj clutch quadrant. i believe the 6 speed is longer so it requires a shorter drive shaft. you also have to do something about the reverse lock out switch. i believe that was on the t56. i also think you have to make a harness extension for the speed sensor. but im not positive its been a while since i was looking into the 6 speed swap. but there are kits to do this swap.