To the best of my knowledge, the Sunline Pioneers still exists, though most of them no longer own Sunline's. It's now just a group of friends consisting of I think around a dozen couples.
I think only two members still have them, and they have been at the M&G for two years now. They are Mark & Beth and Art & Jan. I believe Art told me that they still get together with each other from time to time, but most members have fifth wheels now. Mark & Beth have a username here, have2camp, but Art & Jan do not.
At the graduation party that Marshall set up at the '08 M&G, Art presented me with the Sunline Pioneers sign, which they really don't use anymore, and it now resides on my bedroom wall. It is indeed a small rock guard and has small chains hanging from the bottom where they hung individual name plaques for those in attendance.
I really should get a better pic. The logo is complete, it's just the sun reflection making it look otherwise.
You'll see that just in front of my face is a dark vertical strip. There's actually two of them, and they are basically silicone pieces that once held a brochure holder, which they put some of their brochures in.
Sunline included a copy of this brochure in most owners manuals from about 2002 to maybe 2005. I'm not sure of the exact dates. If you don't find one in your manual, I can get you a picture of it.
2007 T-286SR Cherry/Granola, #6236, original owner, current mileage: 9467.8 (as of 5/26/19)
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