My first suggestion is to drive and evaluate your choices. See if the tractor fits you and is laid out the way you want it to be. Most dealers will allow you to use it on their lot and some may allow a demo at your home. If it comes down to renting it for a few hours to make the final decision, do it and the dealer will probably knock the rental off the price if you buy it. This will also give you a chance to evaluate the dealership and their sales people and service people if you find a glitch. A high hydraulic pressure is a very minor detail and on a used machine of little consequence. When it comes to hours on the machine, if not obviously abused, I consider less than 200 as new, 200 to 1000 as broken in, and 1000 to 2000 as time to trade for a new machine. (See how many discussions that starts). Other things to look for- slop in the steering, play in the controls, filters with dates and hours written on them, tire wear, seat wear, replaced parts, and that everything works as it should- pto, 3 pt lift, brakes, 4 wheel drive, lights, etc. You want to hear that engine operate at all speeds, from idle to full rpm and if equipped with a loader, see all 4 wheels spin as you attempt to dig a hole. If it doesn't do what you expect it to, don't buy it. Have fun!!!