The DM2ks were a pretty serious desk at the time. They were in a different division of Yamaha's hierarchy than the lesser desks. You dealt with Yamaha Pro for support. I specced a half dozen of them for a place I worked at at the time, and wound up taking a couple, pre install, to go do a live recording gig for an industry event. Sadly, the FOH guys screwed their end up badly enough that it was commented on regularly at the lectern, and nuked any chance at marketing the event. I was with the recording and video crew, and spent a lot of time wincing. I could go on, but...
I had never worked on one in anger, and spent little time familiarizing myself with them before packing them up for the gig, and it was not a problem. The interface is a bit archaic by modern standards, but not troublesome. Sonically they are very Yamaha. Useful and neutral, perhaps a bit boring, but extremely flexible. I got very good sounds quickly and had zero troubles during the show. For a somewhat complex mixed analog and digital setup in the early aughts that's saying something. I did a bunch of stuff on them later in the rooms and it sounded great.
In the several years keeping up the six rooms with them, I came to like them. They ain't a Neve, but that's ok. They are a very useful desk. As I say, they were in a separate division at Yamaha. They considered them a pro desk. They were not cheap, either. I want to say they were in the 20k range, but there could be memory drain there. I think the 02R96 was about 2k-ish at the time, so, big difference.
My only bitch about them was that I couldn't assign the graphic EQs to the monitoring path, which was half the reason I specced them in the first place. They were installed in small control rooms that had serious problems around 125Hz., and needed a bunch of help elsewhere. I found a workaround, but it wasn't great.
Sorry, I'm going to be little to no help with the paint, but good on ya for keeping one alive and useful. They're decent desks. And I'm a snob.