What PK said.
If it's a part that nobody ever orders, why would they keep it in stock. There are probably some still here in the States but there's no way for them to easily track availability of parts with all of the different Isuzu authorized repair shops.
Maybe send Marlin a PM. They may still have that VX at the boneyard that he's been canabalizing.
& yes, it's perfectly OK to drive around with the damaged shield until the new comes in. It is completely hidden behind the rear cladding.
Yup, last spring the shop working on mine located the front bumper cover and left front fender cladding locally (after talking to Merlin).
Look at post #73 in this thread:
http://www.vehicross.info/forums/sho...t=offset+saved