At Bathurst last year there were some merch stalls behind the western end of the grandstands selling banners. Of course I should have bought one then but I didn't. Now I am trying to find them but can't so if anyone knows who the stalls were then I would love to know. They were selling the large 6' x 4' banners for about 49$ similar to those in the link below. Thanks if you know.
https://www.hotstuffsporting.com.au/...er-7372-detail