If you don't mind doing some measuring, I can build it so the wires run the way you want them. It's the best way to go. I did build a set up for a W200, can't find the measurements... DOH!!! LOL
If you don't want the relays hidden, backside of yoke, pass side makes the shortest run from alt to relays.
Shoot me a PM and I'll send an email address we can discuss further.