best/cleanest way to Wire 6 gauges (custom cluster)

[MrFairlady]

In My SC400 I'm using the factory Cluster as a house for All my gauges.
Fuel level,RPM,Boost,Wideband,Oil Press & Coolant temp.(1 will be off to the side since it won't fit in the cluster)
http://img.photobucket.com/albums/v703/Mrfairlady/cluster.jpg

So basically I'm using the factory cluster shell & just its location & maybe 1 or 2 wires from the harness.
How is the best way to Run Power (Constant,12v switched and illum) to them.

I was planning on using the Stock Tach Signal from the ECU to run to my RPM gauge,but,I don't want to Crimp power for (individually) all to 1 of the constant and Switched wires in the OEM gauges cluster harness.

[g6civcx]

Get a 12 position fusebox. Fuse each gauge for constant power. Tap a switched power wire for 6 relays to pull power to each gauge. Fuse each relay individually.

Illumination you should be okay tapping the interior light wire since they're all small bulbs.