Update!!!

They have the 17th of August available which happens to be my birthday too!!

It is £140 to book the whole 2km circuit for 2hrs

Or

They can split the circuit, Lower 1km flat or the upper 1km hilly, this is £82 for 2 hours.

Looking at the general interest i'm inclined to go for the whole circuit, if we get 15-20 it's about £7 each.

Start with a time trial maybe 3 laps timed and then divide the finsihers list into pools for a scratch race for the second hour, What do we think???

I've also happy to have the post race BBQ at my place, it's about a 25 min drive away and have loads of floor space if people want to bring a sleeping bag or we have the usual Premier inn/travelodges near.