Type R turbo??

Yo, i am posting this for my friend !! plz help him out !!
He has a STOCK type R right now ! He is thinking of going turbo !! I need as much info as possible for him !!
He wants to run around 8 to 10 psi ! I want to know how much psi can a stock type R engine handle SAFELY?
coz if he is going into engine internals, it will cost him alot !
which brand has a good kit for around 10 psi?? HKS?? greddy??
if he is running 10 psi, he will also need a intercooler, right???

actually, i will leave it for you guys ! Please list all the stuff he needs to run around 10 psi safely, thank you very much !!!