My last and current coach I bought new! I almost bought a Holiday Rambler Ambassador DP it was 3 years old, it had high miles 22,000, and the inside was very worn! There was no maintenance records on the coach and that was a deal breaker with me, because I had no history on the engine and didn't know what I was getting into with this used coach! I went ahead and bought new that way I new what I had. I don't understand your time limit of 5 years? Are you going to quit RVing in 5 years regardless if your healthy and have extremely good luck with the coach?