I got my bag awning new old stock on E-bay. I used an 8 foot bag awning and put it on a 7 foot rail. You have to buy the rail separately from your local Trailer supply or order a 2 piece rail on line.
Wish you luck in your search.
Keep looking for a deal or see this example which is twice what I paid for old stock.
I bought a Shademaker bag awning. If you go on their website they have a list of places to buy from. I bought my rail from Vintage Trailer Supply because they ship it in a piece of PVC pipe so it doesn't get damaged. Try to get the Supreme model awning.