Regarding what Martin has been saying: After sitting a long time, you need to be careful when first start. Sometimes things get "frozen" or don't get oiled quick enough. You have cranked the motor and not sure if it's getting oiled. Assume you checked oil and changed filter if it has one. Read the Tech Tip section re: start up of awakened motors. If you get back to trying to hear it run, just run it for long enough to know it runs. Need to install a oil pressure gauge on the motor. Direct plumb temporary gauge or original gauge, to be sure pressure is there. As I say, you have cranked it, hopefully it is oiling. Others will expand on this issue. Just want to be sure oil pump is working.
With what you have said, I would examine this motor and it's ignition components. Points, plugs, wiring vs firing order.............
All of this is normal, don't get discouraged.
Can you describe the sounds you heard when it sort of started? Any backfire? popping? smoking? did it actually fire? Do you have the fuel pump hooked up to the gas tank?...or disconnected? Running old gas is a NO NO.

https://www.stovebolt.com/techtips/engines/Dead%20Engine%20Start/index.html

Does it have the VIN plate I mentioned? You can put any year you want on a BOS, doesn't mean much. They are an unofficial official document. I never buy without a legit title. Your DMV will advise. you will be OK. You do need to get that done.

You are not going to find parts at a dealership. Local auto parts stores have some parts but you need to know what you need, they don't know. Get familiar with old truck vendors we all use. They specialize in just old trucks and are legit honest companies. Like Classic Truck Parts of America, Jim Carter..... and ask here for part numbers if you can't find a part. Most stuff is Chinese made. Old original part numbers are not usable. (excluding casting numbers and such).

Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn