Where are you finding an affordable 265 Hemi 6? The crate engines start at around $4300 before shipping - no idea how much shipping costs. AWD might be cheaper?
re: the size topic that comes up in another reply, I've read that the 265 Hemi is about 3.5" longer than the slant 6.
If you do it, keep us posted!! I've wanted to see one running here someday!