Silver,
195 and 196 were delivered together on 26-11-63 and 197 followed on 13-5-64. 195 is in excellent condition and cared for by the apprentices. Yes it could be flown again but I doubt that it will.
It is unlikely that a Magister will be used as a gate guardian and I would prefer that it not be done. The Irish weather would play havoc with it in the open and it is much safer in the museum. I remember the Vampire 198 ( now in Collins Bks museum) was out in the open near the officers mess for many years and the deterioration was massive. When you have a gate guardian you need personnel to keep it clean on a regular basis.
Tony K