Ok, another quick update! I put the starter back in and managed to get it started for my first time! It purred like a kitten at idle, but that's all it would do -- idle. I pulled the carb and found the throttle shaft was immobile. There was a carb kit in the cab, so I am going through the carb to freshened it up. There were lots of mud-dobbers under the throttle body!
When I was getting it started I noticed the ignition switch is on the fritz and the light switch disappeared somehow while in storage. More parts to chase down! Hopefully I'll be reporting on a test drive soon.