Right on Harold, good for you. You have a "Mulligan" now! IMO, I would take her down to the short block and leave her at that. Your first engine has the looks, sounds like a 400HO for 68. Your WQ becomes your show piece. I think you get max evaluation with your car now and having these 2 engines is a bonus. I doubt rebuilding WQ will bring you more value. The first build will become redundant.
Think about it and please anyone reading this ... chime in.