Thanks for all the inputs.
The reason i want to go down the valleys at 500-1000 feet is so that I can enjoy my flying again. Having been Military FJ aircrew I spent plenty of time at low level. I wanted to go back down to this level.
As for the safety issue of an engine failure, I am using a twin, which if nothing else will be going just as quick as a Herc/Dominie/Tucano. I believe the main issue I will be dealing with is the other a/c in the vicinity.
In was expecting some negative comments, but I mainly wanted to find out if there was a VHF freq. Now I know there isn't.
Thanks for all the help and comments - that is not a sarcastic bite, but a genuine comment.
Thanks KY, but I think I'll be safe now. Jaguars don't fly low level any more