71-73 Upper and lower cowl repair or replacement?

Does anyone know if the aftermarket or NOS is available for the upper and lower cowl area on a 71-73? Maybe used? My body shop now tells me the mach1 is on hold until I can find the replacement metal. This is the same place that took my deposit and stated they could fix the cowl area in the first place. All the other dents, dings, and rust are repaired. It is so close. But then maybe not afterall. Any help would be appreciated.
Kerry

Update

For all of you that don't know. After market cowls do not exist for the 71-73 Mustang. I ended up with a lot of searching to find a used one that is guaranteed not rusty in Arizona. Kind of pricey, but the body work could not continue until this is replaced. Any one want further information, reply to the thread and I will give you the contact information. I dont have it hear at home.
Kerry