wiring a jeep or car is the same, look for a good electrical guy - There is a guy in Baloch Colony called Zahid Khan - he is very very good at this work - but you would need to buy some heat shrink tubing, some sleeving and a roll of rosin core solder wire - take along your wiring diagrams too, He'll do the job perfectly for sure.
I used to hire him for many of my weird projects - like making a loom from scratch.