Steve:
I bought my first Pagoda last December and here's what I learned on the way. Take some time to determine exactly which model you're looking for (230sl, 250sl, 280sl), transmission type (auto or manual), color combinations, hardtop/softtop or both, etc. I found that knowing what I wanted really narrowed my search. Then I would take some time and learn how much some of the replacement parts cost or how difficult they are to acquire. In my early searching I came across a few cars that looked ok but they had missing or broken parts that looked innocent at the time but when I checked on the availability of such simple things as ashtrays and heater controllers I realized these particular cars might be nightmares to bring up to speed. Maybe pick up a few books on the Pagoda and get to know what options came with each year so you know what's been modified or changed on any vehicle you inspect.
For me, I wanted the first model year (63 or 64 230l). I was willing to compromise on transmission and color but I knew that I wanted an early model with very few (if any) modifications. It also may sound strange but I really didn't need a hardtop so I would be happy with a roadster (living in California I would never need the hardtop and I didn't want the burden of having to store the thing)
I found mine by contacting some restorers, classic/vintage car dealers, and import mechanics and letting them know what I was looking for (basic networking!) This ensured that the car would be local and that I was getting a referral from a reputable business person.
I hope this helps.
(bottom line: I wouldn't be too quick to jump on one that might look good but end up being a maintenance or restoration nightmare, there are still plenty of good looking Pagodas around!)
Steve
Steve Iatrou
Seaside, CA
1964 230sl roadster
White (050)/Black (116)