It needs fuel and compression.

What did you do to check the glow plugs? Are these the original loop glow plugs?

What were the valve clearances when you checked?

How many miles on the engine?

What did you replace in the fuel system? I assume the fuel filters and tank screen, but also the hand pump, pressure relief valve, lift pump valves? What do you hear when you use the hand pump? Do you hear the pressure relief valve opening? Any air bubbles visible in the fuel lines?

Arizona altitudes wouldn't prevent starting. How high are you?