Not enough information to help I would look at the repair history check the fluid conditions take them for a drive and be ready to make a deal if thats what you want. I don't know how the pricing is for your area to know if these will move fast or not. One thing to consider is that sometimes Limited have a easier life than say a SR5. Take a creaper and a flashlight with you. Check on the Net some one has a check list for buying a used cars it may help you from any real problems also ask to see the engine stone cold if you can some time there are things that show when cold or threw the warm up cycle.