It is always a good idea to side grind polish & shot peen your con rods, & of course magnafluxed.
I would not worry about the crank or the main cap studs.
What HP & RPM are you planning on spinning it to?
Stock crank has seen 1000-1400 HP in Brazil.
The thing that is great about a turbo engine, it is easier on parts, you do not need to spin to 7000+ RPM to make great HP & torque.
But don't forget, if your tune is off w/a turbo engine, it can take out your pistons in a flash, that's why I say tune, tune, & then tune some more in small increments & raise the boost level in very small increments also.
For what your are going to do, I believe 400-600 HP Range can be achieved. Believe me, enough to spank a lot of those pesky V-8's
