When I called Thor they told me it had to be ordered through and also picked up at the dealer, and they couldn't ship it via mail.
The Dealer is over 4 hours away.
Thor also gave me the paint codes, but I was unsuccessful at the paint shops getting the color from the codes. The paint shop told me they can use a handheld scanner to match the paint if I brought the Motorhome to them.
The color I needed matched a section on my refrigerator vent cover, so I brought that to home Depot and they scanned it to match, and sold me a small sample can, I think it is a pint, maybe less. Color match was perfect.