So guys, I have already posted this question in the workshop, 100 views and not one reply so I thought why not ask the people who would most likely know. 

I have done this before!  No need to cut cables.

Thanks guys, my boss said he has a pin removal tool ,just have to hope he can find it , still a hellova job.

Ok , got the male plugs sorted but as usual the females are giving me grief, ripped a telescopic aerial off an old car and the smaller section fits pretty neatly into the socket and over the outside of the pin ,

do you have round or flat pins ?

Round pins. 

Necessity is the mother of invention they say. 

ok,your all good then.pins and connectors can be painful without the " right " tool.would love  jhon deerse pin tool kit ....but the price is over the top,piece of well flattened and filed mig wire works well.as steelo said,drawings/pics save a huge amount of grief.cheers.

Woo Hoo  , first was no start ,r f indicator plays lrear ,apply front brakes, engine turns over .Ffffs .got engine /break sorted , fuck around with indicators,  give up ,swapped wires at rear plugs ,