Just throwin out a long shot here.......... If your close to a good Lexion dealer, maybe leasing a machine might be worth the $? The 4-5 and 5-5 series were engineered with tracks and have mudhogs standard, IMO, its made for the conditions your talking about. Warning: you might not want to give it back, when its time to trade ours again, I'd have a hard time looking at another brand. Best wishes | 
combine tracks
