Moving Chevy from one XJ6 to another

I have a 1983 XJ6 that I converted many years ago to a 1985 Camaro 383/700r4. There were a few other upgrades. That was my second XJ6 conversion. Unfortunately that car was involved in an accident in which the frame was bent. I have secured a 1987 XJ6 in very nice condition with a blown head gasket. I have too many other projects pending to swap the engine from the 83 to the 87 and am looking for someone in the San Diego area who can do a very clean hopefully even elegant, conversion. I have the complete wiring harness from a Camaro to use for this project. Any references you can give will be greatly appreciated.

Richard Steiner