Our 2014 Sunseeker has 8 Velwashers (the velcro dots mentioned earlier) which run around the cutout above the cab. If you want to string the curtain straight across the back of the cab instead of following the cutout, you would only have two velwashers, one on each end. I don't know if this matches Bednarski's setup or not.
We bought an inexpensive quilted twin bedspread at Ikea for $29.99, IIRC. DW is going to make a curtain that attaches same as stock, but goes to the floor, and is a better insulator. We did that on our last little MH.