the problem is really altitude, and the company you're with should make sure that you don't go too fast. Your base fitness level should help with that too.

Now do I recall [on that comedy relief thing] that Moyles was one of those chosen to go the last bit to the summit because he was a smoker & used to far less oxygen?

I'd much rather pay you to dredge my polluted local canal with your teeth or something.

Exactly. Peple are far more likely to sponsor an attempt at something that is actually difficult and would take considerable training/dedication/self-sacrifice [and didn't involve a holiday destination].