which plug wires should i use?

8 mm should be fine Accel, Taylor, etc.
I buy the universal kit and make them myself because I have headers and need to route them so they don't get to close to the headers. I can cut them to perfect length another words. I bought a GOOD pair of wire crimps to help make life easier on fabing up the wires. I have used the cheap crimps before and it does not compare to good crimps.

http://www.summitracing.com/parts/TAY-43390/

These are nice to have also. They don't let the wire pop out.
http://www.summitracing.com/parts/SPE-4631/