Scotty
For the black I spray on tremclad flat back reduced with paint thinner. For the olive drab I have been using one of the shades from Rapco, which sells the Gillespie brand of paint. I think it was 33070 I was using, but I would have to confirm this. The paint chart on this site:
http://hedgehoghollow.com/buzz/Colou.../army_clr.html gives 34082 as the closest but poor match. I think the 34052 would come close to a substitute for the flat green colour, although the cross ref chart gives 34079 as a direct replacement.
I order my paint from RAPCO (4 gallons at a time) and have it delivered to a border shipping service. It is about an hours drive to go pick it up, but when you consider that by the time I get the paint home I only have about $45 into each gallon, the extra time is worth it. Rapco's paint is also fresh. I bought some paint from a source in Winnipeg only to find that it was about 5 years old and had possibly been frozen.