It should also be pointed out that its not entirely a one way street - for example England has the excellent Cancer Drug Fund, which Scotland doesn't.
http://www.scotsman.com/news/health/scottish-cancer-patients...
http://www.scotsman.com/news/health/scottish-cancer-patients...
At the very least, an expansion and improvement of the existing equivalent system in Scotland (individual treatment request) would offer a better solution for the need to fund individual specific treatments that haven't been widely approved.