Small update while I'm waiting on the majority of my supplies to come in the mail.
I glued together the frame, and to add some mass to the blue section of the truck that somehow become his whole lower legs, I included the steering part of this gluing and painting stage. The rear differentials, axles, and gearboxes will be black to emulate the reference picture below.
To get the blue I got, I sprayed a bunch of Vallejo blue onto the frame, and then topped it with testors spray enamel metallic blue. It's the best blue I've gotten experimenting with undercoats and different paints.
I've also added the transmission to the Cummins and painted it my own mix of steel, test fit a bunch of the cab and interior parts to see where I can place some locate tabs when I glue the cab together, glued together the differentials, and I'm working on gluing together the wheels. At least, the parts I know glue together.
I have no idea how to glue the wheels to the frame to ensure they still spin and I also don't know how the engine and transmission are supposed to attach to the frame. If anyone could help show me how those work that would be amazing.
I'm still debating how I want the cab to work. I have a full interior color scheme planned, I just have a bunch of ideas for the stripe. I don't know if I should go straight like the toy, or do a cool 45° upward like in the truck below.
Anyways, off to a new weekend of modeling