I emailed Gulf Stream with all my info I could find on my motorhome and a couple days later Gulf Stream responded back that they couldn't find any info on my paint codes. However, they did tell me that Mikes Custom Painting, Inc. in Bremen, IN had painted my motorhome and she gave me their phone number. This was a great help in knowing who originally painted my motorhome. I ended up calling them and talking with Livia. She asked for the unit number which I gave her. She was able to find my codes and emailed them to me. I was very happy to get them and you were right PROOST, they are automotive paint codes. From their website it looks like they do a lot of painting for motorhomes, 5th wheels, and smaller RVs. Now I am going to contact a local shop and see if they can use those codes to do some repairs to my basement compartments.