There is a lot of hassle involved. Plumbing for everything must be replaced, along with wiring length change's, and all your bracket's must be changed or modified. The computer must also be modified or changed to accomadate the V/8.
The transmission is more than likely the "Mazda" design which would probably do the job as long as you don't abuse it. Ford didn't in stall the T5 behind the V/6.
When in doubt :DON'T
Valley Station, Kentucky
Dream EXPression Racing