I haven't had a chance to try either of these ideas, having only taken a SoloMid out once, with trekking poles. The best option would seem to be buying MLD (or other) poles, spec'd and tested for the SoloMid. However:
(1) There is a top loop on the mid for hanging. Depending on where you go, you might regularly be able to pitch under trees or run a line between two trees and pitch to that. This would be really location-specific, like PNW or eastern U.S. forests. I'm the 3rd post-er in this thread; look at my 2d picture of Marty and his DuoMid. He did have one pole (non-trekking, MYOG) on a rock in the center but also ran that top line and tied off to that. (http://www.backpackinglight.com/cgi-bin/backpackinglight/forums/thread_display.html?forum_thread_id=68779)
(2) You could buy or make one pole to off-set, probably to the front. I can't think of what the ideal length would be, but I'm guessing it would have to be longer than MLD's recommended 140cm length for a two-pole setup.
Some do it, but I would think finding an ideal length stick/branch that doesn't intrude on interior space and doesn't risk puncturing the mid would be something you couldn't always count on.