I see a lot in your project that I will need to tackle on my 58 project. I was considering removing the entire rear panel for my big window conversion but am having a hard time locating the spot welds on the inside of the B pillar on both my donor and the new cab. I have wire wheeled the surface which normally makes the welds visible but this has not worked in this case.
There is an old article from Custom Classic Trucks showing another method of transplanting a big window panel into a small window cab.
http://www.customclassictrucks.com/t...uck/index.html
Unless I can locate the welds this will be the method I will be using.
Look forward to seeing more pictures of your cameo.