Welcome! The Jamee was made by Skyline Corp, not Sunline Coach Company. Skyline went out of business around the same time as Sunline, and Skyline's assets were bought out by Evergreen RVs (which is also now defunct).
I would recommend checking for a Skyline owners group or maybe even eBay to find a brochure.
Your motorhome looks super clean, so hopefully it gives you many miles and years of enjoyment!
2007 T-286SR Cherry/Granola, #6236, original owner, current mileage: 9473.8 (as of 6/18/21)
1997 T-2653 Blue Denim, #5471
1979 12 1/2' MC, Beige & Avocado, #4639
Past Sunlines: '97 T-2653 #5089, '94 T-2251, '86 T-1550, '94 T-2363, '98 T-270SR