My opinion is that you should keep both of your paid for cars. I would never get rid of a fairly new car that was paid for. You should be saving now for the next car that you will need so you can pay cash for it. If you put aside what your monthly payments would be for a new car each month, and continue driving the ones you have for another 8 years or so then you would have saved enough to buy your new car /truck without any financing.
If you absolutely have to have that 3rd car, look for an old beater, maybe one that has been wrecked, that is mechanically in good shape for that day care /hunting lease trip. Many times older cars are totaled by the insurance company that are still drivable and require little to no actual repair if you don't care what they look like. They can be bought cheaply at auctions. I see these going down the interstate lots of times heading for Mexico where cheap body work can be done and the cars resold for big profit.