Thanks for that, very helpfulThe cheapest way will be using an adapter cable, to go from a 4-pin circular connector (most reversing cameras) to a 12-pin Deutsch DT connector on the screen:
https://m.vapormatic.co.uk/vapormatic-parts.ashx?descsearch=Trimble 750 camera adapter#part_list/VLC5623
Cameras should be NTSC format.