Hi
You may wish to try some of the companies in Australia. I have attached Vintage Wire hyperlink below. There is another company down under that fabricates harnesses but I dont have their contact... learnt about it from a workshop owner who orders them in. Each harness cost approx less than A$400.
But before you get too happy with the link, from their site, it appears that vintage wire dont do the kamm tail harness
http://www.vinwire.com.au/vehicles.htm
My 35 year old duetto just came out of the painters, having stripped everything from it leaving a rolling shell, I became very concern about the state of the wires and really thanked God that the car had not given me more problems ( like fires??)... so much so that I am not driving the car till I put in a new set of wires.
I have decided to make my own instead of buying a new harness... yep a sucker for pain. Thankfully, it took me only afew hours to cut, layout and bundle the harness together. will be adding the cable lugs and connectors in the next 2 evenings. With proper wire stripping tools and cable lug crimpers, it is actually quite easy.
after spending a few days studying and planning the wiring circuit and actually constructing the harness, there is no longer any mystery in the electrics. It is actually very simple. I am wiring the car back to original specs. Total wire used about 130 meters of varing sizes.
As I had some difficulty locating automotive pvc wires, I thought I would buy the next best thing... Teflon insulated wires, yes it is an over kill! probably about 100% more expensive but what the heck this is one heck of a job and I want to do it only once. These wires will stand up to anything the car can throw at it, its resistence to tempt and oil is way better than ordinary pvc auto wires, which is added security. so no more scary wires with cracking insulation jackets etc for a long time to come.
By the way, if you are going to redo some bits, please use the proper AWG gage wire and also of the proper tempt and oil rating. Dont just use any ordinary pvc wires as they dont last as the heat and oil will degrade the insulation quickly leading to crack insulation jackets etc... scary!
frank