Having bought plenty of stuff from the ex-demo bit of Evans (though usually via their own website), I'd check the description and pictures *very* carefully, as they don't always match the title (I've been tempted by "pairs" of wheels listed at seemingly bargainous prices, which on closer inspection are just a single wheel). They normally do have a disclaimer saying that only what is in the picture is included.
However, refunds on eBay are very easy and you shouldn't have any problems.