1.5jz prospects, 2jz GE questions

[2jz conquest]

Hello, I am in the process of building a 2jz powerplant for a project of mine. I have a 2jz GE out of a lexus SC300 that I got for free. The head gasket is blown and it has bent valves. I will most definately need to replace the head, so I was wondering if a 1jzGTE head will bolt up to a GE block? I know that a 2jzGTE head will not bolt to a GE bottom end, is this the same case with the 1jz head? Also, my pistons are a bit scored but not in horrible condition. I am also aware that the 2jzGE pistons don't respond to boost very well. What modifications are required to put GTE pistons in a GE block?

I would like to salvage as most of this 2jzGE as possible. I may just end up buying a 1jzGTE complete long block, but If I can use a 3.0 bottom end then I will.

Thanks for help in advance, sorry if I come off as a newb