First things first, has the fuel been primed by a hand pump, you'll have a job starting it if it hasn't.

What is the fuel pressure on cranking? Should be around 250bar to start.

If you have access to live data try disconnect injector multiplugs and IMV (brown plug on pump) and crank it, should show at least 1050bar (1600 bar on good pump/injectors)

Have you tried gravity feeding the pump in case the transfer pump has failed or to rule out any other low-pressure system issues? I would expect glo-plug light to flash when trying to start with fuel pressure issues.

Guy I work with fitted a new engine in a TDCI Transit and it wouldn't start - turned out timing was out, once that was sorted it fired up.