Jay, my first instinct is to recommend against trying to sell engineless, as Dave said, it will slim down the prospective buyer field. True, as your previous experience has shown, the Buick narrows the field too, just that without the engine it would get even smaller. Of course, if you some how managed to stumble across that "just right buyer" right off the bat we'd all be proven wrong. On the other hand, a few years ago I had a built 440 mopar sitting on an engine stand. As luck would have it I got a call one day from a buddy who had a lead on a '64 Savoy that the owner had blown the engine, pulled it out, and was now "mad" at the car and just wanted it to go away for a modest price!

If it were me I'd try again to sell it (if you end up making that decision) as is. It would be a good way to test just how prevalent that oft spoken notion about not wanting a "cookie cutter" engine really is. It will be all about exposure. Given the number of forums you're on, how long you've been around, the respect you've earned, and to some degree your geographical location, your odds should be pretty good.