Conversion parts with the tranny will run you about $600 from the forums.
Keep in mind that you may be also able to sell your old parts, but
not for the same price, most likely.
Suprra_Girl wrote a post on this topic:
(post two)
http://www.toyota-supra.info/forums/...read.php?t=354
I, too, mentioned what is needed and some other info for a potential buyer in my thread:
http://www.toyota-supra.info/forums/...4&postcount=15
Hope that helps.