They may as well just open it up as a GA airfield, at least get some profits going, cheap landing fees & parking, I'm sure some of these business types would afford a small turboprop taxi service to operate if they were really that desperate. They don't need to have all the fancy equipment for a GA facility (It helps), but if they want to keep aviation going at Plymouth, logically they need to take baby steps and build on it - will take years, but they need to get profits going first