Jack Failure Disaster

I have an idea of going back to the three wing mounted brackets and modifying an I-beam so I can use the corner jacks in the place of the tripod jacks that would otherwise mount to that type of bracket. I want to keep having a single foot per jack as it seems the tripod feet have to all be on the same plane to keep the jack wanting to move vertical. Also I don't like the idea of the tires contacting the tripod base when backing under the camper. I hope to mock something up during my lunch break tomorrow and will post a picture to get feedback. Going from four jacks to three seems weird but I like the idea of keeping all my jacks seated though-out the procedure and I know that is tricky with four manual jacks. I wish I could afford motorized jacks that would move in unison but that isn't in the cards.