You kinda wonder if EDI isn't a B777-200 candidate once the PW birds are flying again? Possibly one of the domestic configured aircraft even? Unless there's a strong demand for Polaris, it would allow a high volume seasonal lift with a sensible sized business cabin. The United B764 is C39Y203 giving 242 total whereas the B77A is C28Y336 giving 364 in total. American used to do this with the B767 into GLA/MAN, offering US domestic F as a business offering.