nothing seems too bad.
1. you can replace entire vent window assembly. Find one in a j/y that has good rubber on it. To take out either of the door windows, you have to take out both of them (roll up and the vent)
2.take the rest of the chrome off the windshield, caulk the crap out of the window gasket (or replace it if you like to spend money) Get the missing chrome pieces from the j/y and install them.
3. could be anything. timing, vacuum leaks, carb, fuel filter
4. shouldn't be the smoothest ride, but shouldn't rattle the fillings out of your teeth. check tire pressure and condition, check suspension and steering components (ujoints - if the wiggle they're bad; check for broken springs, shocks, etc; have someone turn your steering wgheel back and forth over and over while you watch front end components and look for anything loose. there should be NO play in your steering components)
5. check your switches in the door frame. int lights have power all the time, and closing the door frame switch connects the ground.
as for the radio, make sure radio has good ground. could be pulling ground through light circuit
6. check for loose connections inside the door at the motor. also look at where wires go from door to truck. and make sure fuse is good and tight
7. check ground at radio. run dedicated radio ground if need be
8. fill up a gas can, go for a ride, run out of gas, note where 'empty' on your truck actually is. don't go below your new 'empty' mark
9. ran through a cable (like a bike cable) disconnect both ends of cable, add some lube, slide it back and forth to distribute oil inside cabel. reattach
11. put it back on
12. it's a jeep, right?
13. investigate and remove. depending on amount, there are many options. grinding and painting, filling pinholes with quiksteel, cutting out and welding in new pans, por-15 rust converting primer?
I would definetly get the engine took care of first. who cares what it looks like when you're on the side of the road, right? You'd be amazed how quick it gets fixed if you spend an hour or two a day on it.