Again, thanks for all of the kind words. I am glad I was able to rekindle some fun memories from our collective youths.
Rick: Great job on the F-100. Those are exactly the kind of projects I like. I wish I had thought of that one. 
Sean: LOL, That would make an interesting scratch built detail. But then some one would wonder if those bugs were true O scale. 
Big Jim: That is a really nice collection. I really like the autos. After this next set of trucks I currently working on, I have 2 cars to redo. Expect a lot of shiny chrome.
Hokie: Cutting out the wheel well was easier than I had imagined. I drew the area to be cut out onto a small piece of cardboard and then cut that out, turning it into a template. I laid the template over the wheel well and then traced along the edge onto the metal surface. Flip the template over and then repeat for the other side of the truck.
Having the cut out are marked onto the truck, I then drilled a number of small holes around the inside of the line marked by the template.
I then used my Dremel setup with a fiber backed cutoff wheel and cut along the line from hole to hole, making a rough cut out of the well. I then put a grinder stone attachment on to the Dremel and then smoothed out the opening to the desired shape. I used a hand file for any final fine filing that was necessary. I hope this helps.
