Thanks for all the welcomes, in answer to some of the comments and points:
Chip - Wales is the best place for tearing down roads, I restored a 911 15 years ago and I still enjoy its "throttle response" over the mountains!
Al - I am happy to do as much work as is needed, doing work myself (a competent restorer) will help a limited budget. I have to learn the subtle differences between the models I want track and road so I must research monocoque v space frame
Andy - a visit to tornado is on my list! I will call to arrage for the end of the summer (busy workload until then)
Aiden - I followed your search - you will have to tell me about the search and resulting GTD!
Eglitom - I have taken my 911 around the Nurburgring several times - the GT40 will have to do the same when I have it!
Hope to meet you all at some point.