And when buying a vehicle you can part out what you don't need to get back some of your dough.
I think a 2rz or 3rz/aw4/300 swap would be cool. They handle boost well which is fun. I started a thread a long time ago about different motor swaps to throw info in I ran across, ill find it and post it up.
If you need a motor to replace yours now, I'd probably sell you mine. Not sure if yours is still a dd or not.