2g to 1g head swap

wHAT do I need to do it all? Here is where I am at. I know my top end is suffering bad on my stock 2g IM. I kinda want to buy a jmf IM for my car but I never see 2g ones for sale used. So I was thinking may be able to save some dough on not gettin a new 2g one by swapping in a 1g head. I know I can take out all my good internals, valves, cams etc and swap them into the 1g head. SO I am really only thinking CAS, and throttle body and IM need to be switched. What else am I missing and has anyone done this process that has any info on the subject??
Help is always appreciated.

ahh thanks
it looks like a lot more work then I had hoped it would be,
.I might just get the 2g smim and stay on my head.