I unpacked all the pieces tonight, I'm pleased with the quality of this cab, everything is very sturdy. After some preliminary measuring and fit-up, I've concluded that I will be able to make everything work, but not without some chopping and welding. The side frames as well as the doors will need to be shortened at the bottom and lengthened in the back. The wheel cutout doesn't match the fenders perfectly, but it's close enough to work, and I can fabricate a skirt to seal the gap. Because I have to modify the doors & door frames, I won't be able to use the vinyl side curtains. This shouldn't be too big an issue, as there is an Amish canvas shop not too far from here. I was also considering replacing the vinyl with glass anyhow. It'll be a project for sure, but I still think it will be easier than building a cab from scratch.