Wolf, your LHS quit stocking the Ultra because they quit importing it. Very hard to get the colors you need, even from Horizon if they still have any. The LK I have had problems with, the Ultra has been no trouble as long as I used there under coat.
Al, just for grins go onto the Klass Kote web site and look at what they offer. It's not cheap but it is bullet proof, a two part epoxy like the old K&B paint. I have cleaned KK with acetone and it didn't even dull the finish. When you see the price just know, it will thin 50/50 so it goes a long way. Radio South has matching paint for Ultra but it isn't cheap either and it's just spray cans.
Some special color matches are just easier to get at my auto paint shop but it can be very high dollar.