I swapped from a 700R4 to a T56 and it cost me,
I've had it done for over a year now. Since the car wasn't a daily driver I did it over about 4 months as time permitted. I paid way too much for the trans but I paid,
$2k for the trans, pedals, slave cylinder, clutch, lower shifter boot,
and a bunch of stuff I didn't need from the donor car.
$400 for the electronic speedo conversion box
$100 or so for the Spohn trans crossmember
All the bugs are now worked out and it runs great. I'm sure it'll be slower at the dragstrip but it sure is a lot more fun to drive on the street!