You can't pick it up at Homey D or Wally world.
When is the last time you ordered anything made of steel, like pipes, structural steel or antennas.
Everything is made to order these days and 6-8 weeks is pretty quick for anything substantial.
What kind of engineer are you?
Why would he have ordered the material prior to getting the design approved? This is bassackwards and I was in engineering and construction for almos 40 years. What the hell happens if the design is canned, which it will be if based on the Isreali fence, and he is left with fabricated steel he can't use. You NEVER order prefabed materials unless you have all local requirements and your design blessed. This sounds like another crock of crap.