[Edi]

That ups the number of unused units to 6, possibly 7. Golden Naga, old Lady of Fortune, huskarls 1603 & 1604, 1137 & 1138 (Unused Minotaur & Unused Warlord, they are by those names in the game) and perhaps one of the markata units around number 1119 or thereabouts.

Not sure if old Daughter of the Land is also unused these days.

What I did with Triarius was change startage to just shy of old age with some variation, so if you get one from the high end, it will be old after about 12 turns. Praetorian guard, cleared the unit, copystatted Emerald Guard and renamed back to Praetorian Guard, then set startage to somewhere above 40 with variation so they will eventually become old.

Ineed to work on that mod some more and I apparently need to get into the graphics modding business to get an acceptable graphic for the Shadow Priestess. Might as well replace the Shadow Vestal blob at the same time. I'll post the tyweaked mod in a couple of days.