A way to obtain unobtainable minion?

[Konicorgi]

I'm such a big minion hunter I have over 160 minion, never missing promotionnal one and almost up to date at every patch. Yet, i feel unsastisfied, because I know, whatever how hard I try to complete my collection, that I will be missing one minion, all the time. Because I didn't start the game at the very beginning, I will never be able to obtain the Cait Sith from the ARR pre-order. Some people are prolly like me, and I bet it's also the case for HS pre-order, 1.0 and 2.0 OST.

Please, it would be great to allow minion hunters who reached a certain amount of minion to get those unobtainable minion in some way even if it's real money (mog kiosk with higher price than usual premium minion).

PS: same for mount