I am looking to buy a very inexpensive Mountain Bike - $100~$125 range. I have about ten acres of trails around my house and it has been 30 years since I was off road. Just want to see if I can still stay upright. Don't want to spend a whole lot until I'm sure that gravity has not completely won the war. If you have one hanging around please let me know. I can do minor repairs, replacements stuff, so it doesn't have to be a beauty queen. I'm about 6ft and 220# Thanks.