I have had the hardest time finding a replacement seat cover for my 850 XP. I found a few on ebay and when I go to purchase they show unavailable even though it clearly shows 5 left. Do we have a supporting vendor that has them?

I have had the hardest time finding a replacement seat cover for my 850 XP. I found a few on ebay and when I go to purchase they show unavailable even though it clearly shows 5 left. Do we have a supporting vendor that has them?