Not sure, but I doubt it. The Italeri Freightliner is 1/24, & I'm pretty sure the AITM Marmon 57P cab is 1/25. Maybe the AMT International 4300 or Paystar kits.
Here's a little incentive: Marmon Trucks
Oooo! Oooo! Ooo! Mr. Kotter! Mr. Kotter! I know! I Know! That's my Arnold Horshack impersonation. Ok, it wasn't that great. But then again, you told me, so it wouldn't be fair.
Wasn't the AMT Peterbilt 352 reisued in 2000, or something like that? That's about when I got back into truck mudeling, and i seem to remember a bunch of then floating around.
I think it boils down to two things: personal preference & ability. I don't weather my models primarily because I don't really know how to. I'm learning things, and I might try some weathering in the future.
Fleet looks really nice. The General came out really well. There's just something about the GMC General for me. Nostalgia, I guess. All those GMCs and a lone Ford.
Something about allowing the trailer to turn properly. At least that's what people who know a heck of a lot more about logging trailers that I do told me. Maybe it's just a Pacific Northwest thing. The log trucks around here don't use trailers.
For being 19, you have some very impressive models. Wish mine when I was your age looked half as good as your's do. They're very nice.
Quick photography tip: don't have your light source behind your subject. Your photos will always turn out too dark. It screws up the light meter.
If I remember correctly the Ford Model AA (truck) shared a lot of parts in common with the Ford Model A (car). Same for the Model B & BB. When Ford introduced the F-Series in 1948, that had no parts in common with the Ford cars of the era (ok, maybe the engine).
Looks pretty good. Ok, so it's not a contest winner. Neither was my first one (or second, or third, or fourth for that matter). You're next one will be better.
If it's a Cummins, it's probably the NTTC400 like Revell's Peterbilt 359 kits.
You might want to read these:
Mack E-9
Frame
Frame Part 2
Cab
Final Assembly
Good luck. Have fun. Post pics when you can.