Nope,
I think nobody knows exactly how many cars where delivered to the individual countries.
Daimler-Benz perhaps.
For the US (exports) this is known: about 19,900 cars (230 - 280 SL), a few more or less perhaps.
2nd)
No, nobody knows exactly how many Pagodas (W113s) have survived. There is no reliable statistics working worldwide. There were just to many.
The aficionados _do_ know that 242 amoung the 252 built BMW 507 cars survived.
But with not so rare cars like the Pagoda nobody knows.
Usually, the countries may know how many are today registered but there are also many cars that are not registered: collector's cars, barn finds or sleeping beauties, etc.
"Our" guess is (who is "our" ?) that about 20 - 25 thousand Pagodas survived among the 48,912 that were built. Perhaps a few more or less.
But how many are still alive in Africa ....? Nobody knows ....!
3)
As to your softtop,
no (again), rubberized black vinyl is clearly cheap aftermarket stuff.
Your car needs to have a fabric (cloth) top, called "Sonnenland".
See our Wiki how that looks like
http://www.sl113.org/wiki/Tops/SoftTopOr enjoy the attached pic here (it is/was Bob Waldman's car here)
Good luck & welcome !
Achim
(softtopafficionado)