[Blackbirdws6]

If you are not good at wiring or have an exact plan of attack, pay to have the harness done for you. Last thing you want to do is troubleshoot a stupid wiring mishap.

For the fuel...whichever is easier honestly. If a $50 fuel filter saves you a lot of hassle...its worth it in my book.

Also I would keep the engine bay red. Black wouldn't look bad but I just like the red better on your car.