Re: '83 Jason 35- stainless bolts in the bilge.
It will help but keep your electronics as far away from the wires as possible. There is a corona effect near the wires that may cause some difficulties.
The copper wire is commonly sold in electrical supply stores as grounding wire for lightning rods. (The spikes commonly seen atop barns)
Use a paste (also sold for electrical connections) on all your connections and you should never have to worry about corrosion. The additional nuts should be sufficient.
Seafarer 29 KCB