Ihave a 19?? Crestliner 18 ft boat. There is some old wiring that is there right now, and I would like to re-wire everything myself and get it going this summer. I am an HVAC tech, but I'm not sure if this is up my alley and is possible, or if I should just pay someone else to do it. Has anyone done a wiring project similar to this, and if yes, could you let me know your opinion on how hard it was or if you let someone else do it for you?! Thanks