yes, in fact ive made just such a loom for the V3 MS unit for my engine. apart from the reversing of the cables for the TPS i think 2wd and 4wd looms would be the same although the 2wd TPS does not work well.

the MS V3 as you will know, supports low impedance injectors using PWM and batch mode firing only in std form. does your V4 use PWM and does it offer sequential injection?