Ducato mechanical Diesel pump

Hello


looking to replace my electronic diesel pump for a mechanical one as I can not talk to my ECU (after many attempts with different garages and costs). I am looking for Bosch 0460414120/0460414104/0460414128/0460414129 and some injectors to go with it Bosch 0432193845 (which i'm told will fit the first pump listed above)


any help with these items or ideas on where to buy without spending a fortune is greatly appreciated


thanks