I've begun looking for another 240 (it has been over a year since I gave up restoring my 264 due to extreme frame corrosion). Considering the life expectancy of those motors, what is too old in mileage? I found a 245 (1981) nearby and the seller is asking 0, it has almost 235,000 miles but also has some body and interior issues (nor was I able to test it; they didn't have the keys). Any advice rendered would be greatly appreciated! Rob