Beckley's RV in MD had a Sunline that was a handicap manufactured unit, but I checked and it is gone. It wasn't an Advancer, it was a newer coach. I also just did a search on RVtrader and didn't come up with anything. I will keep my eyes open for you. Good luck.
Lowell, Amanda, Marley, and Winnie
1996 T-2053 (First Sunline "Little One")
2001 T-295SR (Favorite Sunline)
2003 F-304SR (Last Sunline "The Big One")
1985 T-1650 (Current Sunline)
2004.5 Dodge Ram 3500 5.9 HO Cummins