[Graham]

I don't think there are universal ones as such, but I know a guy who has made a couple of off road chassis for drop arms for certain Revell static models. So if we had enough interest I might ask him if he could do something.

But first we need some hosts who have the track available, and enough interested participants. 

I posted the idea in the hope we might find some, but I think this is something Probably for the medium to long term, be surprised if we could generate enough interest this year but I am forever the optimist