Thank you for all the replies.
Throttle all the way open and NOTHING out of the injector pump.
All other bleed points I am getting fuel.
When I have bled the system before, when I crack the fuel lines from the injector pump the fuel comes out at a high rate, today, absolutely nothing. Not even a dribble.
I understand that a rebuild is 'not cheap', however that is a relative term and any hard number that others might have experienced would be great to know for immediate budget reasons. $250, $500, $750???