While I'm not really in a position to try your specific blend, I do agree that a custom mix is a great way to go! I have no doubt yours looks great.
I am nearing a painting stage myself and don't mean to kick a dead horse here, but I keep coming to the same conclusion: Trying to determine the exact
colors are an impossible task. I mean, look at all the variables in these verified screen used
armor sets.
Attachment:
Screen Use back brackets.jpg [ 481.06 KiB | Viewed 6587 times ]
-Ski
armor in the bottom right: That is PROOF of fading. The dark green color has turned ghostly. The weathering on the yellow has all but come off. While that is an extreme case, what other
colors may have changed/faded over the last 30 years on the other known existing sets we see today?
-Frost
armor 2nd from the right on the top row. The dark green is absent on the body, but present on the shoulders. It looks like 2 shades of brown were used (perhaps someone filled in faded spots with BB? It is clearly a lighter brown). This seems like a clear case of post production 'touch ups' (or 'tampering', if you want to apply a sinister twist). Who knows what else may be a touch up in what we see today?
-On any photo original or modern, the lighting, filter and flash all have a dramatic effect on what we see.
Add it all up and, in my opinion, you end up with an unsolvable mystery. A custom blend is just as good to me as any attempted 'official' color list. No point stressing over what can't truly be known.
BTW, I compiled this trying to determine a color for my brackets. The brackets are another example of the original painters clearly doing whatever the heck they felt like at the moment, so why should we hold ourselves to a higher standard? Do what feels right and wing it, I say.