How do I get from where I am to where I want to be?

I think the dynamat like stuff I bought is called Noico. It is the same except the tin foil is a little thinner. Buy it in the biggest sheets you can get. Makes it easier to cover big areas. The stuff doesn’t seem like it sticks very well at first, but after it heats and cools a few times it is stuck so good it won’t come loose even if you try.

Use aluminum furnace tape from Hardware store to seam seal. It is much cheaper than the stuff they sell with the dynamat.

I don’t know anything about interchangeability of compressors, but seems like you could just buy a replacement for the donor car you got it from.