Mike shared this modified truck with some nicely done work.
https://willysforsale.com/ads/willys-pickup-custom/
“Custom pickup, built LS 5.3 motor,4l60e trans, air conditioning, electric windows, Custom fleetside bed, Custom chassis with independent frt suspension, narrowed rear-end with coilovers.”
I’m looking at the custom made bed, I will venture a guess and say this was made by adding reproduction Willys wagon 1/4 panels to the stock pickup bed, very clever.