Check this thread for a discussion on 2001 paint codes ... Need 2001 Paint Codes..lost water heater door.
Your "Aspen" paint scheme is probably comprised of specific colors WRV used across multiple years like 2000 - 2003 as discussed in the above thread. If no one has the exact list of colors for the Aspen scheme, you'll need to rely on the various colors identified in the above thread & related threads.
I have to say that I hunted down the WRV colors for my 2003 model and then contacted Industrial Finishes who originally provided the Diamont paint to WRV. They have the actual formulas on file for the WRV color codes using Diamont paint. I took the codes to a local RV body shop and even purchased a pint of Alpine Red Metallic in advance. The body shop told me that some of those colors simply weren't quite right. They performed a computer color match to paint my coach amd the results were great.