These trucks, require extensive use of TIME management to MANAGE fuel
It takes quite a bit of time to get the IP to prime up with lines disconnected and engine spinning on starter. Once there is fuel at most of the injectors, you can tighten the lines down and be good to go.
One piece of advice while cranking engine OVER and bleeding OPEN injector lines....HOLD throttle in Wide OPEN position to move the MOST amount of fuel to those lines you can!
This will help to expedite fuel delivery to the injectors.
Remember 20 seconds of Cranking, two minutes of cool down on starter, repeat till lines bleed out.
If this engine has NOT run in some time this actually may take many cycles of said crank/wait.
I'm of the jumper wire to FSS, and remote starter switch in hand to do this type of first fire work.
No need to swap to PS this engine will be fine so long as it's a runner.
GOOD HEALTHY charged batteries and even a good booster to assist can be a great asset.
To make things even easier on the starter pull the GP's so there is no compression to fight, this will make things happen quicker and as well let you see what the GP's look like and replace the bad ones as needed.
JM2CW for a first fire
Al