I thought I was at least aware of most of the books on the Pagoda, but ran across a new-to me- one that I would recommend.
"MERCEDES BENZ sl w113 series 1963 to 1971" by Brian Long.
Lots of history, period photos I have not seen elsewhere and interesting facts (assuming they are correct). For example; the first 45 280sl's had trim rings and hubcaps, not wheel covers. Who knew that?
If you are building a Pagoda related library you should have this book. $69.95 publishers price, about $39 on Amazon.
Gus