Congrats on your Sunny!
What model and how much it weighs, This may help.
At the top of the forum is a tab called "FILES" click that tab and it will open up large listing of Sunline info and downloads. There is a Brochures section and scan to your year camper. Find the brochure and by looking at the floor plan you can back into the model number. The GVWR of the camper and the dry unloaded weight is listed there.
See here for quick reference but the FILES tab is how your get to this area. You must be logged in ti down load and take it slow. You can only download so many files at one time. Sunline Coach Owner's Club - Sunline Owner's Files
Also if it still exists, in a cabinet door (kitchen or bath mostly) there was a sticker that may have had the VIN number and possibly a model number and maybe a GVWR rating. They changed over the years so do not know exactly what your 86 would list originally.
Hope this helps
Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
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