I did have one but I scrapped it.
Have you tried a local scrap yard?
Depending how much this adds up to be you may want to consider a Rock Armor fuel tank skid. I've seen one in person and they're good. If they mount like my Columbia Overland skid it replaces the stock strap. They're on ebay for $180 shipped.
Forgot about your PM, too. Sorry. Not aware of any tires for sale at this time, sorry.