[Fluff]

Sorry taking so long to reply and for laying out any rules .
Thinking along the lines of for unmodified class ,allowing change of tyres and adding of weight ,so I suppose changing the guide would also be ok.
For the modified class anything goes except for fitting it with four wheels !!!
I think the next step is to find out how many are interested ,in which class they are interested and how many tracks would be available .On that score I think it should stay UK based as postage and delivery times for abroad seem a bit chaotic at the moment 
So will all interested parties chuck in any thoughts as this is my first proxy .
Thinking about late summer as a start .

Let's hear it from you guys 

Steve