Since my original '67 was too far gone (for me anyway) I picked up a really nice '68 cab off craigslist. The rockers have been replaced and the rest of the cab is virtually rust free!
Never thought I'd find that in Michigan.
In reality the cab is from Arizona, the gentleman I bought it from spends his winters with family in AZ. To finance his trips he buys rust free classic parts in AZ and sells them to suckers like me in the rust belt for double the price. Not a bad business model
I'm sad to see the small rear window go, but now I can have a sliding rear window so I don't feel too bad.