SEDECREM
How goes the hunt??
The 300SEL 3.5 that you mentioned was imported by Yayha Khan when he was President and not given to him by Karim Aga Khan. I know for sure because Ali yayha is a family friend and I used to see this car in the Pindi Club when it was brand new in early 1970 driven by Ali, who was then working for Shell.
The other car is definetly a pre 69 as it has the chrome bumpers. Do try for a side picture if possible.
take care.