I've since followed that link, it's a scam. Load it up then try to click on "Buy" "My eBay" "Sell" etc etc on the top, they don't link to anything....
Stay away
Considering we don't have RWC's for a start that flies a warning flag for me. I've seen scams like this before, definitely something to be weary of IMO; even the wording seems off
Here ya go, more pics, should give you a fair idea how they look.
As for the tyres on their own, not really, would rather sell the whole lot or the rims sans tyres first
You could be on the money there... had the same issue on my mates car when we took his motor out. Ripping off hoses only to find that the joiner had corroded half way through and wasn't going to last much longer. Lucky the motor was out, would be a prick of a job to change in car