At any of the shops I worked at the best option for a new engine was to go with either a long block (complete with heads, minus intake, oil pan, accessories) or a short block (without heads) they are priced accordingly. Expect to spend about $2000 or so on a long block (comes with rest of the gaskets as well).
You would have to repack your old engine in the crate (properly and the shipping companies are anal about it) for core. As far as the supercharger, there are rebuild shops such as Canadian Supercharger (they charge about $400 for a rebuild?)
Labour on a long block would run about 10-12 hours max.
1992 Bonneville SSEi
White, grey Leather interior.
Tinted windows and blackouts on headlights.
Custom high flow exhaust, Everything replaceable - DONE
300 000 kms original engine, tranny 2 rebuilds.
Playboy Bunnies Embossed in Tint. Oh Yah!
Ever Seen a Polar Bear in a Snow Storm?