Buy the Haynes manual for the car. It has a wiring schematic that can guide you. If a complete re-wire is required by a pre-made wire harness, many VW restorers caryy them , try www.cip1.com they may carry it. Then follow the harness directions.
Yes
1600cc
165R15.
1800 pounds.
15 inch
Well, the engine in a 1974 vw Beetle is in the back of the car. So the brake fluid in front or the back to the left of the right.
10 gallons.
between the rear wheels
http://www.thesamba.com/vw/archives/info/bugchassisdating.php
4-1/2 inches.
NO
Mine didn't have any.