Putting T61 Turbo on 90 Supra???

Im putting a T61 turbo on my 90 Toyota supra and well i dont know what i should do about the water lines and all that crap where i ordered the turbo it said straight bolt on replacement and well turns out that was a lie so if someone could give me some insight that would be greatly appreciated......... Good ol american muscle is so much simpler....

I am looking for some help and advice. I am looking to put a turbo on an 88 7mge engine and would like to know what is safe. I would like to put the largest turbo i can do with out causing harm to my engine. What has anyone done and what kind of horsepower have you gotten out of the engine.