After the Wife and I carried Boxes of Mini Bike Tires and wheels back to the truck at the Good Guys Car Show and Swap, It was time to build something. The wagon was donated , got a 1949 GMC tail light and mini bike wheels. Still needs a few personal touches.
Love it!! Slammed wagons are the norm here in the Midwest, we see a lot of them at the car shows. Your "workbench" is eerily similar to mine, right down to the 20 year old Metabo
Besides the cars, minibikes and everything else, I've been bitten by the wagon bug myself. The damn things are EVERYWHERE, all over my house and shop. One of my favorite (unfinished projects) is a 197? Radio Flyer Fireball, it's raked out from the factory with bigs and littles. I did something similar to yours with minibike wheels and am running 4" front and 6" rear polished Lil Indian four spokes.