I'm trying to wire the engine bay up but the restoration guide only tells me there are wires not colors, does anyone have one?

 

for ~$20 order the electrical assembly manual for your 70 mustang. it will have the schematics and colors shown.

 

Apart from that, which is very useful, why do you need to know? The wiring harness can really only be connected one way.

 

most importantly I need the heat and oil sending wires, alternator, and starter solenoid....other than that I got it all squared away

 

I have wiring diagrams from the interweb and they show colors. You have to take the number of the wire and use the table on the diagram to find the colors, but it's not hard.

Mine's a '66, so my diagrams won't do you any good, but you should be able to easily find ones for your '70.