interesting...now that you mention it, I've seen that set in red, yellow, orange, black and maybe a couple other colors, but never in green. I have seen the stubby handled awl in green, however but it's always by itself.
good luck on your quest!
I'd say if 2 of the 5 are known to exist, chances are pretty good that there's a set out there somewhwere. Where and when it'll surface and most imortantly, for how much it'll cost (it IS green, after all ) are the issues. Hell, I didn't know here was a yellow set of these made until a few months ago.