That's a tough question. I usually like a mount to show off any imperfections, scars, abnormalities etc. since they are what makes the animal, and the mount, unique. But a missing foot? I dunno...I might be tempted to have a shoulder mount done, and of course the cleaned skull displayed Euro-style as well. Saves a fair bit of money and space as well. A nice trophy photo, perhaps professionally enhanced and framed, is always a nice display as well, perhaps integrated into a plaque with the shoulder mount. If you have a trophy shot that displays the leg damage I think that would probably be my choice.
I've dealt with an outfit (TrophyShotPrints.com) which takes an average digital photo and manipulates colour, contrast, etc. to create some absolutely eye-popping images. Check them out, it's well worth your time if you have some photos you would like to display.