I camped in my '81 air-cooled tin top for 19 years before I bought
my Syncro Westy.  I still have the '81 and drove it to Buses by
the Bridge last January:
https://plus.google.com/photos/103112516551893462609/albums/5837531697558906833?banner=pwa&authkey=CNPQkqLd_r-6bg

I made curtains.  Not a big deal since I had made them for my
'61 and then my '67 and then my '76.  Here is a write-up on
how I did them:
http://jones.colorado.edu/VW/VWcurtains/VWCurtains.html
This description plus all the pictures are here:
http://jones.colorado.edu/VW/VWcurtains

I also made two screens for the sliding windows.  They looked
like this:
http://jones.colorado.edu/VW/screen.jpg
and like this when in the window:
http://jones.colorado.edu/VW/screen-installed.jpg

My '81 does not have tinted windows.  My Syncro Westy does.  If
I were to use the '81 for camping, I would get the windows tinted
ASAP.  But as Bob said, at night the tint doesn't help you--you
need curtains.

Richard