Mark,
I like the cab dolly! Too bad about the rust. It looks very similar to the cab I'm about to start on in the next week or so. I have a pretty "rust free" cab
HERE that has a shaved drip rail and firewall if you're into that look/style. I bought it because it had very little rust. But my build took a turn like these things seem to do. More than likely, I will sell it if I think I can fix the rusty one. I have thought about just welding a new drip rail on it but can't find one anywhere.