There is some info from you that is needed before anyone can give you a good price estimate for a 1JZ swap.
First, what year is your car?
Second, would you be rebuilding, installing the engine, and doing the wiring?
Anyway, here is a link to a post
http://www.toyota-supra.info/forums/...e-1jz-2jz.html
There is some info there, as for price you are looking anywhere between 1.5k to 5k, depending how much you do yourself and if you buy a front clip which is the smartest way.
Good luck.
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Whats in the garage, well.... in the yard.
1986.5 Toyota Supra - NA - 5 spd
1986 Ford Ranger Lowrider - 5 spd
1984 Ford Ranger XLT - 7" Lift - 4X4 - Auto
"Stuck in the 80's"