[MrE]

I personally would not worry nearly as much about high mileage as lack of use. I bought my first Newell in the '90s, it was a 1973 DP with reasonably low mileage for it's age, less than 200k on the odometer. I bought it over numerous other DPs that I test drove because it had a more solid ride and had SUBSTANTIALLY less unidentifiable noises in while driving down the road.

While doing some interior work, I found a receipt that was over 10 years old for some engine work that was done when it had over 500k miles. I have no clue what the actual mileage was, but never had any problems caused by excessive mileage.