The C35 is not at all a rare wheel and Sky have been selling them along with their bikes to who ever wants to trump up the money.. As you can see from the information shown below, not only are Sky selling the bikes, but they are also selling the Pedals and Wheels to go with them.
The bikes on offer include those of Sir Bradley Wiggins. It's worth noting though that Wiggo never used Shimano pedals and preferred Speedplay Zero's (Does your bike have these?)
As such it could be fair to suggest that you could actually buy a bike Wiggo rode and at the most expensive price it could still end up cheaper than a new Dogma, at the best price you will have substantial savings over a new bike.
Stock:
Approximately 30 bikes from a variety of riders, including
Sir Bradley Wiggins and World Champion's models, will be sold on a first come, first serve basis (stock subject to change)
Bikes: £2,750-7500 (excluding wheels and pedals)
Shimano RS80, C35, C50 wheels: £6-750 (note most are tubs)
Shimano Dura-Ace pedals: £70-100
http://www.teamsky.com/article/0,27290,24896_8683664,00.html