You might want to contact Ascot Enterprises. Plants and stores in the Elkhart, Nappanee and Goshen Indiana area. Lots of the rv manufacturers buy Valances, drapes, bedding etc from them. They might of even made the ones for your Redwood. Ask and find out. They could also make you whatever you needed if they have the correct fabric.
Michelle & Ann
2018 Chevy 3500HD Crew Cab High Country DRW, D/A, 2016 RW39MB, Dual ACs, Auto Level, Auto Sat Dish, Stack W/D, King Sleep #, 17.5" Sailuns w/Disc, MORryde IS & Pin, Comfort Ride Hitch, 5.5 Onan, Res Fridge & Induction Cook Top