Yeah, there is a separate section for truck aftermarket posts, but the good news is you're in luck. Gary Wallace of GW Trucks makes a resin T800 cab. He makes both the H (high hood) and the C version you have in the pic, both with internal or external air cleaners. You'd want the T800 C internal. I believe it is $65. You may have to modify the cab slightly for the drop window doors, I'm not sure. But, Quality stuff, I've ordered from him before. He doesn't have a website but you can email him for his catalog and/or orders gwtrucks@yahoo.com. The guys over in the truck section could help you find everything for your project, just about everything on that truck is available aftermarket or in kits.