I know Duplicolor #1620 Chevy engine orange matches perfectly, what after market color works for frame/ ROPS???? I know this a grey area /forums/images/graemlins/confused.gif. Still working on home-made root grapple for my BX2230....
The Kubota dealer should have the grey in spray cans and I think it was about $6.00 the last time I purchased one. If you will need a quart just purchase it from Kubota.
If you want to brush paint, you can take a paint sample to get it matched at any place that has computer paint matching. I've had good luck in the past with The Home Depot. - Art