Maybe not what you were looking for, but I'd skip the stroker small journal SBC in favor of either an aftermarket block or a good, used large journal block. First of all, unless you have a old small journal stoker crank, you'll need a custom crank ($$$) and cleaning up the lower end of the block for the stroker is more $$$ better spent elsewhere. Finally, the small journal connecting rods were always the weak link for these engines unless you plan to keep the RPM below 5800 RPM. (If you still intend to use the small journal crank, be sure to magnaflux the rods and then shot-peen them before you install them. Use ARP rod bolts for peace of mind.)
Internally balanced stokers aren't necessary if you're keeping the RPM below 5800 RPM. Using an externally balanced unit will save you money that you don't need to spend. I personally like the 383 combination best for street torque, but YMMV.
Good luck with the stroker!