That is an AMAZING find! I've heard of a couple of TV mobile units being found around Southern Cal, but always missing 80% of the equipment. I think you may have just found the oldest "virgin" and most complete specimen!
I hope we hear from one of the other mobile unit owners... I know at least one other enthusiast who has one, and is restoring it. I'd post a link, but it might invoke curmudgeonry from TV collector privacy advocates
Charles