1987 Ford F-150 Crank no start

What's wrong is my head is spinning from your description. You got the "wires to toggle"? What does that mean? Jump-starting the battery suggests you think this is a charging system problem. "New sending unit with tank" I'm guessing is the gas tank, which suggests you think there's a fuel supply problem. If you bypassed the relay for the external fuel pump, you will have fuel pressure at the engine. The proper thing to do would be to listen if that pump is running. That will tell you the pump and its wiring are okay but not if the relay is being turned on during engine cranking. Did you install the distributor in an attempt to solve this problem or did the problem occur after it was replaced? It sounds like nothing was actually diagnosed. Have you checked for spark?

I'm sorry, but I'm even more confused. I still don't have any idea what "the wires to toggle" means. By "fuel pump solenoid", if you're referring to a failed fuel pump relay, why wouldn't you simply replace it? The system is designed to turn the fuel pump off if the engine stalls. That is a safety feature in case a fuel line gets ruptured in a crash. If the fuel pump kept on running, it would dump raw fuel onto the ground where it would be a serious fire hazard. You bypassed that safety system with a switch? If the other guy runs a red light and causes a crash, his lawyer or insurance investigator is going to love you. That switch will remove a lot of their liability for your injuries.

I don't know what a "gmas" is or if it's important to the story. Also don't know what it took to get the engine restarted, but even though there's no definitive clues, what you've described suggests a signal from a sensor is being lost. That sensor would be the pickup coil inside the distributor. There's two different systems depending on where your ignition module is. If you have a large box on the inner fender or firewall, the sensor it uses doesn't cause too much trouble. The most likely problem is the wires break from flexing.

If you have the much smaller "TFI" module bolted to the side of the distributor, that uses a three-wire sensor that often fails by becoming heat-sensitive, then it works again when it cools down for an hour.

The place to start is by checking for spark as soon as the engine stalls. Since the distributor was just replaced, the assumption is the pickup coil was part of it so it's new. That would leave the ignition module as the main suspect for a no-spark problem.