Got these done this morning along with the intake pipe. Powder is Prismatic Powders autumn grey (PSB-5946), which is a pretty close match for Yenkin-Majestic "Majic" Massey Ferguson gray 8-22955 paint that they sell at Tractor Supply. It's darker than the original TO-30 light gray, but the previous owner of the tractor had already repainted the chassis with that paint, so I figured I'd just stick with that shade. Now I just need to get the carb coated and back together so I can use the old girl again.