dont mean to be an A$$ or anything, but if your riding with others just break a towstrap or a rope with hooks on it, i bought a 15' rope from walmart that had a hook on each end and has a 1500lb rating on it, nothing super strong but it gets the job done...if you ride with other people thats all you need, 2 people shouldnt ever be stuck in the same hole at the same time, 1 person go through at a time, if 1 gets stuck pull him out and let the next guy try it...all the experiences that ive had with winches werent worth a darn becuz i was so stuck that the bike that was on dry ground that was winching me was being drug into the mud hole that i was in
just my experiences with winches