Dave.
If you require a professional opinion then I suggest you should expect to pay for it. If you were a regular customer giving them other business then I suppose they might feel minded to provide a complementary service.
If you were to require my professional services (very unlikely) then £25 would just about get you the time it would take to walk around the car then sit and type out a certificate, and that would not include any of the overheads that I assume Mr Ledgerwood has.
You don't get something for nothing these days even in the Morgan world.

Regards