When our ACE front curtain linings flaked, the DW sewed in new heavier duty linings onto the original drapes. They are working well and much better quality than the OEM ones. For those not so lucky to have access to a seamstress.....you could also try the following link. I have never used them, but someone else on this Forum posted the link some time ago.
https://www.garymanufacturing.com/co...s-rv-curtains/