Fish suppliers have to have business to stay open. As Theo says, I don't think we have many Arizona members.

Is it legal to bucket stock in Arizona? One option would be to target your forage species in a nearby reservoir or stream where you normally fish. Start your forage fish a year (at least) early. Come back and stock your desired predator fish after the forage is established.

This will take longer, but patience is a virtue! (Especially when you don't have any other options.)

Another option would be to find a supplier in New Mexico. They would probably haul the fish for a big (expensive) order. If they won't, and you are doing a big, high dollar pond, then you could build your own hauling equipment (also expensive). Finally, if you are doing a relatively small order, then you could drive a fairly long route from a supplier to your pond with small fish in oxygenated bags.

We do have many actual fish suppliers on the forum. Hopefully, they can improve upon my non-expert advice!

Good luck on your new pond and fish raising adventure!