Pat:
I like the D and E models too. The one you looked at does not sound like it's it top condition, but if the price is right it could be a nice airplane to put a few bucks into. Pat, I passed up a nice '74L model in Kentucky, less than 300 SMOH, IFR panel, nice interior that I think could be bought in the 19-20K range. If you're interested, send me a private email and I'll give you more details and the contact info.
Best wishes.
Don