Ok, so I got onto my coach and told him about the half marathon challenge. He's not happy, but willing to assist. He won't "fast track" my training, but will give me advice.
I have a 5k race at SMC scheduled for Sunday (if my wife isn't working!) and also there's a 7k on Saturday and a 4k race on Sunday afternoon I can make. I'd really like to make the SMC race though, as I can just go along and ask to do a 10k instead.
For the half marathon, I need to work on my pace, as they stop the runners that don't make it to 11k in 75mins...
The training starts now!