Good luck with your hunt for a good W113. Besides buying the best condition car you can find/afford, here are two more suggestions I always give buyers:
a) Test drive every W113 for sale in your area. Even if it's not the style, price, or condition you're looking for, it helps educate you and give you perspective. Use every car available to help you make the best purchase at the end.
b) Tell the people on this Forum what city you live in and you have good odds that someone will help you with your purchase. Maybe even show you their car and help educate you in person on what to look for.
Rodd
Powell, Ohio, USA
1966 230SL, Euro, Auto, Leather, both tops
1994 E420