First... I'll say that you should rip a mountain bike off that thing cause it'd be the greastest thing ever.  Second,  I'll say, kick your dad out the backhoe and jump in yourself, those things are a blast to operate.  Thirdly, just cause your pops is motivated, owns a business, and aparently knows how to operate machines doesnt make you anything other than being in the right place and time to have a kicker in your yard.  Dont listen to the white trash tellin you you're rich.   nothing these people say means anything unless you eat from silver spoons.
if you go with a snow gun, make sure you develope a way to cool the compressed air, otherwise, it wont matter how cold it is, your snow gun will blow hot water and make ice.  PM me with snowmaking questions.