Got ahold of Gear Vendors today. The parts I need aren't too terribly expensive, all things considered. The guy highly recommended a controller, and the price of the complete wiring kit isn't that bad. I might go ahead get that too. Even after factoring in cost of the parts needed, including the controller kit, it'll end up being $800-$1,000 less than a brand new complete kit.
Oh and based on the serial number, it was made around 1988. Due to it's age, the fibre type of clutch materials used don't need fancier expensive oil, any regular conventional, non-synthetic gear oil will work.