Send an email to Barbara O'donnell at Industrial Finishes:
b.odonnell@industrialfinishes.com
She is the paint Guru for Monaco coaches. If you give her all of the info on your coach, She will send you the BASF paint formulas and if you tell her where you live, she will let you know places nearby that can mix the paint for you.
There is much more to the paint than just matching the paint color. There are iridescence particals that are added as well as things to control the amount of flop which will affect the way the paint looks visually, so that it matches the other pained panels on your coach.