Rb26 build

[c4240sx]

I have decided on my build for 240sx. And I am going to swap a rb26 into it with 300zx transmission. I was going to put a lot of money into it but I have decided I am going to start business at the same time. So I am wondering should I have to upgrade anything else for it to run fine without blowing or hurting any parts inside the motor. Motor and going to put new arp stud, rod and head bolts, cosworth rod and main bearings, precision 6765 single turbo, injectors, fuel rail and apexi computer with boost control. Also if I do this what is safe psi to run and can you guess a whp rating. Thanks for comments in advance