Hahahahahahahahahahahahahahahahaha
What are your goals? What are your budgets? What are your skill levels?
For what it's worth, @
Pure Automotive does in fact have a plug and play wiring harness (that is $6k), and, I believe just about everything else you'd need to drop a 2JZ into the FRS, failing that, plenty of other vendors make mounts and baubles that will make it work.
Here's the thread
Maybe your friend needs someone new to take advice from?