Enjoy it, most people aren’t lucky enough to have a 40!!
By “blower fan”,
- do you mean the heater blower? Check the heater fuse and the connections. Check the resistor.
- Do you mean the carb cooling fan? Check the ground on the manifold and all connections. Check the controller below and behind the glove box. The carb cooling fan logic is more complex and works with the emissions computer (under the dash, on the firewall, behind the clutch pedal.
- Do you mean the radiator fan? Is the engine running?

By “brake”, do you mean the brake warning light?
The brake and seatbelt warning lights plug in under the drivers seat, near the center console. Check the connector.
Edit: have you checked the headlights to ensure their connectors are fully seated? Have you tried the high-low beams, to see that neither work?
Edit2: you really don’t want the hassle of trying to build a new harness, or make a generic harness work... unless you absolutely have to.