33's on D2

I'm working with a shop to get 33's on my D2. I'm just having trouble finding tires. Apparently the only steel wheels suitable for a D2 are 16" diameter x 8" wide.

All the 33's I'm finding don't have those wheel dimensions. They're either for a 15" wheel diameter or 10" wide wheel.

I'm a little confused as to what will fit and what won't. Has anyone done this conversion and have suggestions?