Help with the 3stge swap, 3sgte swap help? Options

[x94celicagtx]

I am wondering about the 3stge enigne swap for my 94 celica gt with 170 000 miles on it. My car is just too slow. I want to put the 3stge enigine in my car. I found the 3s engine on www.totaljdm.com and it is $1600 shipped to my house. It says it comes with the engine, turbo, intercooler and ecu. What else do i need for the swap? And i have heard about a lot of trouble when it come to the wiring harnesss. Is this true? Where could i send my old harness and a new one to get them done so i dont have to deal with them. And also is this engine a good deal or is there somewhere else i can get a better deal or anything. So if anyone could give me some help it would be greatly appriciated .

Thanks,
Ryan

[x94celicagtx]

i jsut looked at venus-auto.com and which one of the 3stge enignes is best to get there is like a st205 ,or the st185. The engine i found on totaljdm.com said the engine has 255 hp and these other ones ay only 245 and 225 hp?? i dont know what to do