Here's a possible suggestion/option to develop for PUP automatons::
1. Make a series of quests for PUPs (restrictions to begin might be like "must be lv.99", or already have all other head/body frames, etc...) that allow it to get a +1 version of the now-existing frames/heads re-using the graphics for them, but just raising elemental capacity or giving +stats to them as the HQ bonuses, as how we got Abyssea nq/+1/+2/reforged items; they reused same graphics, just added stats.
2. Make a separate quest for each head and frame (10 total?) for those people that might use mage robots, but rarely use PLD or RNG, etc... so people can be selective.
... just a thought...