Jalopy45:
We've had some company in town so I've been away from the forum until this morning.
I called my neighbor as soon as I read your post and asked him to contact the seller (which he did) and I'm sorry to report that the entire lot of stuff was sold to another interest party shortly after I looked at the parts.
Too bad because I think the front cover probably could've been used as a set of patterns, and would also have given dimensions and locations for bolt holes and such.
While it doesn't help your cause, I did note some interesting clues: The Chevy II suff included a bellhousing, a flywheel, the front cover (of course), side cover, three [!] pistons and connecting rods, and a few other minor parts. Missing was the forth piston and rod, the head, the crank, the pan, and the cam. Given the crack I found on the front cover and the missing pieces, I'm guessing something REALLY bad happened to that particular motor.
Just as a point of interest, the lot of parts also included some flathead stuff (new pistons, cam and lifters, aluminum heads, and a dual carb intake) and other miscellaneous items that I probably should've paid more attention to.
Again, sorry the parts are gone.