I am of course a new first time boat owner. I have purchased an 1986 250 Sundancer Sea Ray. I have put alot of work into it and hope to have final pics soon. I wish they made a manual to work everything. Like how can I tell if my water pump is working? How about my bilge pump? Where is it located? I think it has some of the original wiring and I would like to rewire it. But were do I start? I have never done this before? Are there any good manuals or guides to doing this? I would like to replace the searchlight and horn. Should I just go get one similar and use the existing wire to hook it up or run new wires?? PLEASE HELP. I am pretty good about exterior/ wood and other, but electrical no way. What are some of the MUST be Functional to take it out?