[NotoriousScrat]

I just recently blew the head gasket on my '86 Celica GT (2SE stock engine) and I'm thinking that instead of fixing it I would rather swap in a 3S-GTE. The car has about 155,000 miles on it and my mechanic told me that head gasket is a weak point in this particular car's engine. Before I make any actual decisions, however, I have some questions about this particular swap. First, what should be done with the transmission if I get the swap? Would the original transmission (assuming a new clutch, etc) be able to be used and if that so would it be able to handle the new engine? Would a RHD wiring harness be usuable? Are there any things about this particular engine swap that would cause problems, and what are those problems?

I really appreciate any help I can get with this. Be warned however, that my knowledge of cars is somewhat basic (that's why I'll be getting this done instead of doing it myself for instance), so forgive me if I have to ask for clarification.

Thanks so much!