If the engine was running fine before the tank issue, don't see anything in your description that indicates you should pull either the injection pump, the injectors or the supply pump; seems more likely that you've just not worked enough of the air out of the system to allow the engine to fire and start.
Before disassembling anything major, make sure the starter is spinning the engine quickly enough, and that you've spun the engine enough to get a relatively air-free flow of fuel from the tank to the output side of the injection pump (it must be full, or mostly full, of fuel to operate properly). If you have an electric lift
pump, this is pretty easy, if you have a lever on the side of a diaphragm lift
pump on the engine, or on a filter housing, not so much.
Persevere, it could take several minutes to get enough solid flow to start the engine.
Make sure you have a fully charged battery
, and that the connections at both the battery
and the engine are clean and tight.
Don't overheat the starter.