Well I guess things work themselves out for some reason. The 460 didn't work out. The current owner (widow) can't find the title for the car. The IFS replacement providers don't even offer engine mounting for the 460, so it really would be a total custom job. At least for now, the 460 isn't going to happen. Time will tell. Thanks to all for your input. It is really appreciated!

And Jeff, since the 460 was going to be a total rebuild anyway, yeah, it would likely have ended up a 514 monster!! Oh well. Who knows what may transpire!