Glad you found a fix. There are a few sources for "proper" wire (colors, stripes, etc.) or else you can just go with good quality but close-enough color-wise.
With Max, I've always called. And if it's anything that's exclusive to anything remotely "old", they'll put you to one or two guys there. As I said above, I haven't always been successful but they've been happy to talk with me and do some digging. Or save me some digging by telling me if they know for sure they don't have something, can't buy it separately, etc.
I hope you'll report back with the excellent results of your fix. [ch128512]