T5 converted to a Tremec 3550... what do i need?

Hey guys, been doin some searching around and i can get a decent deal on a tremec 3550 that was upgraded.... however i have a T5 in my car now, stock bell houseing and drive shaft on the car... What would i need to make the trans fit? I'm not sure if i'll have to get a different driveshaft or bell houseing shifter etc... I'm hopeing to jsut have it bolt up but i know it's not going to be that easy i'm sure.... Also will i have to change out the tranny mount 2? I haven't messed with trans stuff b4 and id rather know what i'm getting into b4 i get the trans and find out it was a waste of time lol... any info would be a great help guys!

unfortunatly i'm wonderin about the 3550 not being enough trans behind the car... best pull to date so far was 511rwhp at 10psi and 547ft of tq.... wich will prob stay around there, but i'm shooten for about 550rwhp and staying under 600ftlbs..... I'm not sure if even and "upgraded from hanlon" 3550 will take that.. He was sayign around 500ftlbs it'll take.... although i'm over that already lol.... was hopen that i didn't have to step up to a tko600 but it looks like that may be what has to be done afterall... although i guess it's a once and done deal then to... what are you guys putten through your tremecs? (both the 3550 and tko600)????