I would say go for it! You are young and full of ambition and are capable. Sounds like your getting into it fairley reasonable. The problems you mention are not insurmountable, just takes time. Your first MH is a learning curve. All the systems ie, 110 volt, 30 amp, 50 amp, 12 volt,converters, batteries, heating, cooling, dash air, roof air, house water, city water, water pump, grey water, black water, low point drains, winterizing, dewinterizing. It will be fun. The 460 and trans are fairly stout, the will go a long ways. Fix the problems as they arise, dont go looking for trouble. There is so much information out there, just keep digging. There is also some misinformation, just wade through it. Good luck and happy motoring.