1. What is wrong with the hood we see?
2. What do you do next? about what?
3. I guess you want to try and start it next. But the sequence of events for restoring or refurbishing depends on your overall goal. (and abilities). It is nice to see if it at least fires. If is starts, then it's nice to see if it moves, turns and stops. That may give a list of things not seen otherwise.
4. JonG is talking about the grommet he sees on the oil filler/breather. Someone probably had a PCV (valve) or hose connected for crankcase ventilation. Possibly to the air cleaner. Nothing to worry about right now, he is just observing and informing you. Same with the alternator. A good thing but not original.
5. If it has been sitting a long time DO NOT ATTEMPT TO START, unless:
A. Clean new gas is used from a clean tank or container.
B. Don't run it too long untill oil pressure can be seen. Assume you checked oil and other fluid levels.
C. I guess you have already determined it's not stuck or any bad noises.
D. Don't circulate old crusty/rusty radiator water thru it.
E. We don't know how long it was sitting, or the history, to give you further cautions.
I like the filter to be before the fuel pump.
Don't rush into switching all that sheet metal when you have a truck with all (possibly original) matching paint and patination. Known as patina. Easy does it, you must inspect all kinds of things. Mechanical, wiring, interior, drivability. What rust are you talking about? I don't see any.
Nice truck
