This work was done in July, right after finishing the exterior.... I have a fair amount of posting to do. Looking at the possible mess of a bad zolatone paint, I went with the easily controlled rattle cans. Rustoleum makes a flecked paint in several shades - I went with "Pebble". It seems to be plastic flakes mixed with a high power solvent and a propellant. It sprays rough, then settles into a smooth paint with the look of a high end spatter treatment. Topped with a matte finish clear, it appears to be easily maintained, and certainly repairable if and as required. Note the miserable coverage of the flecked paint - 10 cans were required for the interior, and I've kept 2 cans in reserve. The top coat required only 2 cans. [followup: it does not wear well. I painted before running power and fuel lines, stages where one steps in and out of the back at least 100 times. Lots of bare spots. I'll clean, spray and again top coat with the clear enamel.] I made the mistake of painting the cabin side of the firewall - I subsequently sanded the surface in order to get a good attachment for mounting electrical components. Lesson - don't paint where you want to glue things!