The first photo loaded okay so I think I can carry on.
The idea for this project came from a photo I took on my way to work one morning, I think in about 1993.

These kinds of trucks are a fairly common sight, part of the landscape almost, where I live, work and play in the Los Angeles area. This one caught my eye and I took the photo without knowing what I would use the image for. I ended up making a painting of it some years later but after that, it seemed like it would make a better model project.
Sometime after I made the painting, I happened to see a diecast truck identified as 1/35 scale in a K Mart and it was less than $10.00, so I bought it. I thought I could make the vignette using the truck if it was modified a bit but like most projects, it sat for at least 10 years before I decided I was going to attempt the project, or throw the truck out.
I tried looking for a similar one on eBay so I could show a better photo of it before I cut it apart. I only found one like it, painted in different colors, so I hope I didn't ruin a collectable truck.
Here's a photo of the truck after I cut and sectioned out the rear end.

It was a PEPSI truck and it had the proportions closer to this truck-

But I didn't like the colors of that truck. So I combined the photo reference with the larger truck for the project.
I should mention that I haven't really made a model car/truck since I was a teenager and after being involved in the military modeling part of this hobby for so many years, it was both liberating and intimidating.
It was fun to give myself permission to make up details that didn't have to meet published research. That's what the guys with these real trucks do.
Back to the process...
I was afraid to cut the back of the metal body apart because I didn't know if I could do it cleanly. My office has a large bandsaw that I could use to make the cut but worse than making a wobbly cut, I was afraid I might damage or break the blade. Once I finally decided to risk it, the cut went perfectly and the bandsaw survived.
After that, it was no pressure to make any other modifications I thought were needed.
I'll continue this in another post so I can see if the photos are showing up.
Mike