In reply to various: I'm rather surprised people are suggesting the Old Man of Hoy. It just doesn't strike me as a great objective for the OP for numerous reasons especially including how long he has been climbing. Also, in direct comparison to the Old Man of Stoer it seems a poorer choice in almost all aspects.
As regards the majority of potential sponsors, I can't see it would make any real difference - both are suitably spectacular.
However, Hoy is:
- far more expensive to climb once you include the cost of the ferries. (Surely that is crucial since the aim is to raise money for charity?)
- more time consuming and requires more logistical planning (it'd be unlikely for relative novices to complete in a day trip to Hoy).
- significantly harder.
- much more committing and serious.