Im planning on doing about 60/40 residential/commercial this summer. I have shored up a couple accounts here and there but I have a problem, I do not have a mower. The average residential is an acre to an acre ½. The all have a fair amount of trees shrubs etc. The commercial is more wide-open but still fair amount of obstacles to deal with. Can I buy one mower to suit my needs or do I need two??? Not sure what to go with. 48,52,61 , exmark, hustler, ferris, walk behind , zero turn. Obviously I need some direction.