I can't answer your question But I love Aztec,It takes me back to my youth(17 to 18 years old)where I played it a lot.

If you touch up and keep it waxed, it really won't be a problem, You can also brush a little clear over the repair to help protect it. All this depends on the area to be touched up and the amount of play you plan to give it. Make sure your areas to be touched up are free of wax before you make the repair.

learning to mix colors is the biggest hurdle you will face,
the use of a color guide as found in art supply stores will shorten the learning curve.
Wasted a lot of paint only to find I was doing it wrong
I use oils but and had a bunch when I got into pinball so it only made sense to continue with them.
Would recommend testing the paint out on a small piece of glass/plexiglass and after it dries
you can slide it over the PF and see side to side if your on the right track or not.
Dry paint may look different then when it's wet or thinned out?
Good luck on the Aztec

Thx HDC that is a very good tip, I'm going to do that when I do my palyfield.

I'am about to tackle this as well. From what i read, is that if the area to touch up is down to wood you will want to put a bit of clear first and wait a day then do the touch-up. Paint will seep into the wood (soak it up) otherwise! Thats just what i read, but right now I'am like a sponge researching alot before I do it. What grit sand paper to use once you do the touch up? What if using oil base, like testors pens and paints, still need to sand afterward? Thanks

Are you guys using an eye dropper so you can keep track of the "recipe" for certain colors......i.e. 2 drops red, 3 drops white. etc. etc.