TBH I reckon you would have more joy selling without tyres as it will open up more potential buyers...
I saw a set go on ebay recently for £580 with new tyres, but again, saw another set sell for £650 with tyres as new, but also saw one set that were freshly refurbed and the guy couldnt sell for £700 inc tyres...
If you are willing to sell without tyres, then I would be interested in taking them.