Lightly used Canondale Hollowgrams - how much?

[240Cup]

Already have these from new on my Synapse and now been offered a pair complete with tyres from a pal's Canondale Supersix which I would put on my Boardman Road Team Carbon (used as a winter / occasional bike). That still has the original (and I'm led to believe fairly pants) wheels.

They are very lightly used (he has pretty much straightaway upgraded to some fancy things with ceramic bearing hubs and they are in as new condition, been offered them for around £550.

What do the panel reckon??

[240Cup]

yep wheels!

been meaning to upgrade them from the standard ones for ages and this seems like a good solution to me but have no idea what they are worth.