I've had exactly the same thoughts, but I think the states will have to take the lead here to protect firearms dealers.
What I mean is this: with a variation on CC, a modicum of training (or prior military service) gets you enrolled in the state militia. A gun dealer goes through a similar process to become an official state militia armorer. If the FFL is pulled without cause, the armorer orders from the state, which places his orders for him, and continues to sell to state militia members.
I think this arrangement is constitutionally untouchable, probably even if Class III firearms were included.
In reality, it would depend on the state's willingness to go after BATFE agents operating in its jurisdiction.
I don't think either Texas or Arizona would have problems with that at this point.
Are you really advocating to put people on lists in order to purchase firearms? That is EXACTLY what they want.