I have a customer that wants an area tilled 6-8" depth. The area is 16' x 32'. The area has been tilled before and has no rocks or roots to worry about. I need to rent a tiller. What is the best kind of tiller for me to rent? What is the difference between front and rear tine? Since I have to rent the tiller, what do you think a fair price to charge would be? I will also be doing a lot of extra work on his lawn also, not just the tilling. Mulching, edging, mowing, etc. Thanks for your input.