has megaminx tripod been tried before?
so solve an ECECE block on the last layer at some point during the last two faces and preserve it for LL so you're just left with 3 corners and 2 edges to solve.
tripod seems well suited to mega because of all the different ways there are to build stuff!
i can't imagine the algs being very nice, but there are only 53 by my count (3 possible CP * 9 possible CO * 2 possible EO = 54 - solved case = 53) and recognition wouldn't be too bad (especially compared to megaminx PLL)