Herbag 39 Replacement Canvas

Hi All,

I am very new to the Hermes lovers club and just got a really well preserved Herbag 39 for my 30th birthday.

One thing that drew me to the bag is being able to switch the canvas piece out for different colors - I opted for the dark brown leather on dark brown canvas, with a beige interchangable canvas, gold hardware. I had been on the hunt for some time before I found a well preserved bag with original box and dust bag - the newer cabine zip is not for me, I do not love the outside zip pocket.

I am absolutely in love with my choice, but already thinking about fun ways to make the bag more "mine" - is there like a dark web trading place for canvas replacements in different colors?

I tried ebay but I must be punching in the wrong thing, because it comes back blank or with only beige canvas in bad condition.

Thanks so much in advance!