More Cold War Miniatures... Almost

Well, I have all of my US Cold War troops painted up. I still have to base them and varnish though. Also I have two M113s that need painting. What I lack is support elements for my US troops. I just don't know what I should do. I am guessing a Jeep with a Recoilless Rifle or an MG mounted on the back. Also a tank or two because those are the supports that are available. But, I can't find any other supports. Any suggestions for 15mm support elements for a Cold War US Chain of Command force?

Hopefully they will be all done by the end of next week. Until then, I am on the road again.