Welcome to the forum Kirk. You have done the right thing by joining the forum. I will suggest that you should go out and purchase a repair manual the most popular are the Haynes manuals or the Chilton manuals, both are good and are very helpfull. A word of caution if yoou use the manuals, they are again, very good, but you cannot follow the instructions word for word there are variations to engine components that may make the instructions a bit different than your application. They are a great place to start. the next suggestion I have for you is to use the forum, there is a lot of great info. from people who have done whatever you are going to have to do. Before you post a thread about a particular problem do a forum search using key words for your repair. For example if you have to change a water pump, do a search for "water pump install", like I said, some one has already done it. If you don't find anything via the search, post a thread be as brief as possible and give specifics.
As for your wiring issues, you have said you bought this car from a cousin, ask him for any thing he may have cut out if he has it. If he cut a connector out and he has it you may be able to splice the wires back together by matching colors. when you start to wire things back together use "wire nuts" (the little caps that twist on to the wires where you have connected them). OK back to the problems, since there are somant things that are not working you most likely have wires that are cut and therefore the lights and things cannot work.
One last suggestion, if you are close to a salvage yard you may want to see if they have a car like yours, if so you may be able to go there and look at the things you need to, such as the wires and where they go. seeing things first hand is the best way to do things.
Take your time and enjoy your project, working on cars is alot of fun but there can be a lot of headache that comes with in.
Good luck,
Dan