The Jockistanis and Taffs will doubtless want independence soon, so why leave any assets there. The threat doesn't come from that direction any more, so close Leuchars and retain Coltishall, close Kinloss and retain St Mawgan, and close Lossie and retain (say) Odiham. Oh, and bin Valley and replace it with Yeovilton or ......... Chivenor!