Ah, well there's the rub ... a color CRT won't fit inside a Classic case. It is physically too long. You'll have to go LCD.
Personally, I don't mind the grayscale: http://dclausen.net/projects/tfam/
Thanks for that info about car kits, I had been looking at them. I presume I should be looking at the 9" CRT commercial equipment replacement panels, which run in the $400 range. The good news is they also take TTL, CGA & EGA inputs. ;-)
I will look for the pic of the Japanese Classic I had seen modded with a plexi cover. It looks pretty good. You're probably thinking about glare, but there is anti-glare plexi as well.
Thanks for the reminder about the touch-screen overlay kits. I was more interested in modding an original Plus era compact and was thinking I would have the front of a CRT sawed off and stripped of phosphor to cover the LCD. Now I can do that and have my touch-screen too.