FS,
The rental or purchase argument is an interesting one.
Sherburn have just purchased some AT-3's, touring spec with GPS etc. The wet rental rate is £83.00 an hour. Im willing to bet that is hard to beat for a club aircraft. There are other clubs with these aircraft and seem to offer good rates. Would you consider a LAA machine? something like a Europa or an MCR01, Im sure ROD1 will give you the info on running costs etc. A share will obviously give you greater flexibility for trips away etc. Getting a club aircraft for a couple of days may be difficult.