Best bet is get you a well maintained 20 year old 55-75 pro horsepower. I bought a brand new 55 go John Deere and John Deere clipper!!! Machines makes the most reasonable small tractors. Get a friend thAt knows tractors evaluate any use tractors!!50 acres is a bunch of work i tend to 40 here now I have a beautiful setting but rather live in a 1200 square foot lake house with boat lift and covered dock!!!!!