Turbocharger?

[USMC302]

I plan on pushing somewhere in the payground of 15psi right of the bat, they say I will have full boost at 3kRPM and right around 600hp, problem is, my tranny is only recommended for 500hp, so bolting on slicks will not be the first thing i go out and do. I know my axles will most likely go too, but once it breaks, upgrade! After talking with the turbo guys, it just seems too risky to push 15 psi from the blower with all the stress on the crank and all. The guys said I could get the turbo kit for $2999 plus another $1k for the 67mm turbo, so $4K is what I was looking to spend on the blower setup with an intercooler anyway. I remember him mentioning something about the boost controller but not much, I will take caution on that though once I order it. I plan on installing myself since I have the garage and tools and work on them for a hobby, hell, I think I work more on the cars than I do here at work! ANyway, thanks for the input