I keep one small one with the basic screw drivers adjustable wrench electric tape that I use first to fix the easy stuff. Then I have a electric bag with all the cutters strippers multimeter and all my electric tools. I then have a bigger one for all the wrenches and sockets. Another that holds the hammers saws files and odd stuff. I tried one large tool box, then found I could not move it.
That derelict boat was another dream for somebody else, don't let it be your nightmare and a waste of your life.