Hello Roy

I don't think you'll find satellite imagery in detail of the base in that time period - maybe aerial photography. The sat imagery from that era wasn't zoomed in and detailed like Google Earth today. You might take some recent photos and superimpose info from the 68-69 era onto the photos. Here's an image posted in this group with some annotations:

http://members4.boardhost.com/TakhliRTAFB/msg/1469588036.html

You can use Google Earth to get recent views of the base but parts of the US side has gone back to jungle.

There are others also. Good luck.

Dick Williams