Here is a link where you can find wiring diagrams. The 75 isn't available, but the 76 would probably work for you. http://www.atlanticz.ca/zclub/techtips/
Bubbles, enough money was put into your car already. Get a FSM and learn about doing those simple jobs yourself. By the way, I hope you're not using RTV on the oil drainplug.
Conventional wisdom suggests that one should replace the regulator and alternator at the same time. I replaced my voltage regulator years ago without any ill effects on my alternator, but I may have just been lucky.
I must have committed an abomination. I changed out my MC & brake booster recently. I did not bench bleed the MC. Instead, I bled the MC and proceeded to bleed at the wheels. After bleeding at the wheels, I bled the MC again, just to make sure. After all, brake fluid is cheap. I ended up with a normal feel to my brakes.