I ran my first marathon a year ago and despite my training consisting of running 40+ miles per week I was in agony during the last 6 miles and as for stairs for the first few days afterwards it was backwards each time.
Also the fundraising will be tough, I only raised £1000 for my first marathon and this was with a sob story!
I've not been able to get a number for the Liverpool Half so If you decide to do the Liverpool half would your friend be willing to sell me their Wilmslow number? I live and work in Manchester so could pick it up / pay you.