What is the size and model, gas or diesel. Seals dry out and tires will probably need replaced. You would probably want to figure those costs in and more. If you should get it, have all fluids replaced as soon as you can, including brake fluid. It could be a great buy but check everything as best you can and expect a few surprises along the way. If gas, specifically check that the generator runs well under light to medium load for a while. If gas, it should probably be replaced or diluted right away and carry some extra fuel filters whether it is gas or diesel. Look into a good extended warranty for at least the first 2 years to help you out. Best of luck with your decision. It could be the purchase of a lifetime. Happy Trails Bert