318 rebuild for turbocharging

So the original 318 short block out of my '70 Duster is sitting in my garage and for a while I had toyed with the idea of doing a turbo build. It seemed like a far-off dream until I finally got a steady income; now I think I can start putting together a basic plan and it won't just be a pipe-dream (hopefully).

What I'd like is 550-600 HP ideally from one of the kits a fellow FABO member has posted about making or something similar. The 318 needs a full rebuild (rings are gone, smoked like crazy) but I'd like to keep it on a budget, I've read the stock cranks are pretty strong but should I keep an eye out for an old forged one? I do intend to upgrade the connecting rods and put in some affordable forged pistons with rings gapped for boost of course, target 9:1 comp max (I'm at high altitude ~5000 ft.). I'm also aware the Mopar SB heads don't clamp as tight with 4 bolts per cylinder so I'll probably go with head studs and good head gaskets. For the top end I might take the stock Magnums off my 360 and have them gone through (VJ, guides etc.) and use those on the 318, at the same time I upgrade the heads for my 360. The biggest expense (after turbo setup of course) will be fueling though as I fully intend to go EFI, I need something that can adapt on the fly to changes in altitude.

I just want a strong reliable engine that is built to handle decent boost and last while doing it.