First off, welcome to SOCAL!

On the oil  question...sort of left it open ended, what temp does the motor run (does it have a stat?)

If it runs nice and chilly I would stay with say a 40 wt racing oil (for the added zinc content).

As far as wires, depends on your budget, seriously, if you want a set of wires that will be the envy of everyone around, buy some Jacobs ceramic boot 8MM wires, they will last virtually forever, but plan on using a nut to purchase.

As far as bang for the buck, pick up a set of Taylors, they come in a bunch of colors and can be custom cut to length, I use both Jacobs and the Taylors, both very nice wires...Stay away from the parts house brand wires though...use;Belden, Taylor, MSD, Jacobs, Accel, Mallory and so on, it's what they do.

Spark plugs, ACDelco, Nippon Denso and NGK are all I have used, all are great, if you use ACDelco, use the marine version (they are plated and don't rust as easily)..

If an electronic ignition .040-.045" (must all be the same) if a point deal .035"

The heat range would depend on the type of ignition system...not to mention head type.

GT