Noah's Ark

Hello,
I'm new on the board and I'm looking for some help finding out what motor I bought. I want to know because I need to buy some head gaskets.
I think the motor is from a Liberty RS but I'm not sure.

The motor came with a silver water/air intercooler and the head gaskets are of an organic material rather than metal.
The shape of the head gaskets is very similar to the ones found on the WRX, at least here in the states.
I would like to find copper head gaskets if possible but would be happy with the factory ones if nothing metal is available.

So if you have any suggestions as to which motor this is and where I can buy head gaskets, some one who will ship to the states, I would really appreciate the help.

I can supply photos if that would help.

Thanks,
Noah