Assuming no major injury setbacks Lizzy it'd be a great goal for you to work towards, you can stedily build up your mileage and confidence and not have to rush cramming all your training into a short space of time.
It will undoubtedly be a challenge, beyond just that of a physical challenge, obviously you'll need to allow more time each week for your runs as they get longer, but the end result will be a euphoric feeling as you cross the finish line. (or rather a few mins after once you've caught your breath

)
Find an event or two along the way to build up to, maybe a 10k or two... and yes, perhaps even the forum social - even if you're not able to run 10k in one go by then, you could run/walk it and there will undoubtedly be a big supporting crowd when you cross the finish line

Alternatively of course you can be part of the crowd cheering others home
