building an AK I have used a premier wiring loom ( Thanks Pete the b) Its the Lucas model which all the wiring is colour coded to suit the lights etc.. It was an early one so I have added 2 relay boxes and an extra fuse box ( 8 ). If you understand wiring its a doddle I am 1/2 way through. I am not using a BMW column and switchgear but following the original dash layout using the VW turn indicator and dash mounted swithes.
Up to now circa £150 spent, a saving of £250 and vat from AK, I know from memory you had to buy the polevolt interface for the wipers and that was £50 but this is now in the kit. Having seen one laid out - credit were its due the AK loom is a doddle to fit but has no spare capacity.
There are other companies that do looms at £300 but you then need the wiper interface which takes it to £350 so you might as well spend the extra £50 + vat and buy the AK - I know I was lucky for what I paid for mine. PWS are still around but I have not had much luck getting a response.
.............the skint man from skint town!!;
cobraclub.com/gallery/showgallery.php/cat/633 - this is the link to my build photo's you have to put w w w . h t t p : / / in front of it!!