I'm doing the axact same thing! Only thing you need to take into account is 1. The extra oil to water pump the SVT engine has, which should come with the engine anyway, it has two lines I think, running into the water resavour tank (correct me if I'm wrong SVT owners), also the computer for the SVT engine.
Thats about it. May also need the SVT TB, accel cable etc assembly. How much did you get your SVT engine for?
Can you beat $1200 for 35k mile engine complete with a/c compressor, p/s pump, water pump. NICE! laugh

Simon W. Las Vegas.
96 SE V6 MTX Tereador Red (1st Blown Engine, better be the last!)
1999 SVT Engine
SVT Exhaust w/custom DTM Tips and optimized Y-pipe and no Res (thanks to Po-Jay!). LSD Quaife(thanks to Terry!), SCA CAI w/KKM, Grizzly clutch, FMS 9mm wires, Airknights custom short shifter.

"You can only get more rice at one time by ordering Chinese" - Davo7SVT
"it's only nuts and bolts" - Terry Haines
"Drive it like you stole it" - Me!