Thanks guys. IO540 - keep the advice coming! Great stuff!
If people are serious about wanting to rent it, do let me know. I need to sit down and work the sums out, but it would be useful to know the kind of demand there is out there for a new aerobatic/touring tailwheel based v near London.
It seems odd that its possible to do a tailwheel conversion but then not find an aeroplane to rent - but being pretty new to all this I'm probably missing the blindingly obvious.