advice needed

[josh f]

My son and i are wanting to get into the rc construction hobby. i would like to get a excavator,front end loader,bull dozer or dump truck.. my question is what is a good brand of equipment to buy thats not going to break really fast isnt going to break the bank and will actually dig push or haul tilled up loose dirt or sand... it doesnt have to be something that will dig in hard ground. any and all advice is appreciated thanks in advance.