Checkout the company DHall1 worked with 6 months back or so, really good pricing using your stock end tanks I think, they built in a new core, good pricing and results. Seems about like this, but ready to roll I believe. It might take some searching to dig it up.
What most any of us really want is the custom exhaust manifolds for under $2k, now that would be nice!!! Leaving turbos in same location for us auto trans stooges....