Bill why don't you just start putting a few bucks away and buy a stroker 472 Hemi crate engine or something like that. Pull the numbers engine put it into the crate engine shipping box and save it. Then you have the option to either put the numbers engine back in, sell the stroker engine, or leave the stroker engine in and sell the numbers engine to the buyer and walk away. I think the stroker crate engines are a little stronger too (anyone?) and everything is new so you can have your fun without worrying about losing the numbers engine. I think you would have nearly the same amount of $$$ in it and you would get a little more back from your investments. If you're going to put $15k+ into your numbers engine I think another $8K or so gets you a new crate stroker Hemi again not sure of current prices?