Well when my car goes in for it's cambelt i intended to get all four alloys re-sprayed..... my centre caps with the Skoda logo is looking a tad sad for it's self so is the dealer the only option for 4 of them or are the ones on ebay to be avoided ?

The eBay ones are slightly smaller, try your local TPS will be cheaper than dealers. 

Superskoda used to be good,