Here's a pic of my guage setup. I'm using the center area for my dummy lights and high beam indicator (since I'll be getting the matching speedo soon).
I used a terminal block (I think that's what they call it) to wire from the guages to the cluster, and then from the terminal block to two 6 wire trailer harnesses so that if I have to remove the guages, I just unplug the harnesses and it pops out (have to disconnect headlight, wiper switches and speedo cable too). I used the opposite ends of the trailer harness so that I can't mix them up and run everything messed up.