I've decided to try and get a few 10k runs under my belt to be confident to an proper run like the Bugati.
I've done a few 10Ks round Longlevens and today I ran for the first time with Almost Athletes. Not quite a 10k and was a little easy going, although I didn't want to join the faster moderate group because I would have been left behind.
The route is here
Will definitely give it another go next week.