Slant Six Roadster Build

I love it. Im building my first roadster type car right now. Im using an old early 30s chevy frame, a speedway straight axle front end, and an E body 8 3/4. I just got the rear axle mounted to the chassis last weekend, used leaf springs from the front of a ramcharger. My engine is at the the machine shop and is almost done. A big straight 8 out of a 1948 New Yorker.

I hope it turns out as good looking and functional as yours.

What are those 16 x 4 wheels off of? Ive been looking for something like that and havent had any luck so far