K-Injection converts to MK3

So people it’s slow so far my carburetor doesn’t take much longer with me, I can get some parts today but not everything with me. today worries quantity divider suction trunk suction head hoses for the injector. what I still lack is the wire harness, and there are 2 differences! the XR3i Jg 81-85 which has only one ECU and 86-90 have two different ECUs( Believe one of them belongs to ABS).I’m slowly skeptical how to do now? the MK3 I find kei a share more for a wire harness and the one from MK4 is still a lot. so I have no other choice to pick up from MK4 but I need to know that I have to get the whole cable construction out of it. but my mind is not all I need but the one from the K-jetronic cable. who of you can help me to work on this system MK4? and pictures would still be for the benefit of MFG.GIova