I think I will try this approach:
1. Buy a new 45-50 amp alternator
2. Place a 5" pulley on the engine and a 2" pulley on the new alternator.
3. replace batteries with 2 100 amp hour batteries .
4. eventually add a another solar panel.
ANY suggestions on who has the best pricing for alternators? I could not find a Delco alternator with an external regulator for around $100.00.
I did find this one. MARINE ALTERNATOR : JC Whitney: Auto Parts & Accessories