Deej,
If you bin it on the way to the track, Byrne-Up's van will pick you and the bike up and take you down to the hotel/track. I've seen them get 4 trashed bikes in it before we even got to the track - but that was very exceptional.
Bin it on the track, and either B-U's van or the travel insurance will get you and your bike back home. Also if the bike croaked on the way down.
There are always plenty of people who will help get a binned back on the road/track, and information on where your nearest dealer is, if you need spares you can't get at the track.
If your bike's not fixable, and you have the cash, there are hire GSXR750s for use on the track.
Cornwall eh? I'm moving to Trispen, near Truro in about 18-24 months. We can goes halves on van hire for 2008 - bonza!
Have alook on B-U's web-site for loads of info.
http://www.byrne-up.co.uk/ If you contact them, mention Spin - I'm trying to get a free T-shirt out of them.
Spin
[Edited on 27-1-2006 by spinoli1]