Are you sure?
I put a flip-out foot on my V3 100, from Speaker Hardware. It required making a cutout in the bottom, but the geometry isn't critical, the part is light, and the finished product is very stable.
I've only ever seen Fender tiltback legs on shallow cabs. I thought about them for my Rumble, but they normally deploy behind the cab. When not in use, they just hang down. In both positions, gravity keeps things secure and stable.
When I drew it out for the square proportions of the 100, it did didn't seem to work out.
Then I thought about using them "backwards"- angled back when stored, then lowering them to support the tilted amp from a point near the front of the cab. Once again, I couldn't seem to find a suitable layout.
I'm wondering if I gave up on the idea too soon. Does anyone have pics of a V3 with tiltbacks installed?[/QUOTE
I followed the thread because I was looking to add the legs, but went ahead and bought an amp stand instead.