Hi guys,
Thanks for the pointers. It seems the VAT is more thorny than I thought.

It reminds me of a time when I rang C&E to check out the VAT position of selling telecoms services to Jersey/Guernsey. The man said "blah, blah, so you do have to charge VAT". "OK, I'll charge VAT." "No, you don't have to charge VAT." Huh???
Anyway, it appears as though Fly Stimulator and his comrades have already had a similar idea and are executing it with aplomb with an SR20 and SR22 Centennial operating from Denham. So for now, I think this is possibly the best avenue to explore.
Thanks again for your help!
Rgds,
TPK