swapping idiot light dash for gauges,which wires need changed ?

[RShaips]

I have put a gauge dash in my truck and I changed temp sending unit and oil pressure fitting but which wires still need to be switched ? Also I am not getting power to my ignition switch when I try to turn it over,I can jump the starter with a screwdriver but thats it. I am not getting power to the purple wire on the starter. I am putting this truck back together from a complete frame off. I know the two wires on the starter are in the correct place. If I knew HOW I could post a picture of my nice , clean , painted , partially assembled 67/71/72 2WD SWB.Thanks for the help