Re: 1/400 Scale airport.
I had my Heathrow Airport ground foil printed by a local printer on a vinyl sheet. Then you can cut it up as you wish.
The missing B.707s still needed to be done in 1/400: Uganda Airlines, Luxair,
DC-8s still needed to be done in 1/400: UAT, Iberia ('80s scheme), Air Ceylon, Air Spain, Seaboard World (-63CF)
Aeroclassics Comets still missing- Dan Air (4 & 4C), United Arab Airlines/Misrair/Egyptair, Kuwait AW, Sudan AW, East African AW, Saudi Royal Flt.