Tell him BSA are now spanish as most if not all guns are assembled in spain
Then reintroduce the TX/Pro-Sport into the equation.
If he doesn't want to part with his cash a simple strip down and proper relube will do suffice in the meteor. Providing of course the spring isn't broken then a quick phone call to chambers will be required.
Have a quick search through the tinternet on guides for job in hand. Also he may want to join BSAOG forum.