The Hunter 34 would be well served with a 10kW motor for most sailors. Not sure about the 2 X 1 ratio as it is the most common ratio but motor, propeller, and hull characteristics vary. 10kW should get you close to hull speed and with a well sized battery pack from 25 to 30NM range. The 200ah battery pack will give you about 15-18NM range for most sailors, suggest you consider a 300ah as a better size. Your solar would push the boat at about 2kts and doubling it is a good idea. Good idea to focus on the charging the 48v battery pack and then pulling power from the larger propulsion pack to support off shore 12v needs. Not sure what generator you have, but that generator would push the boat at about 4.5kts (it likely have a 5hp motor in it). As for pricing, cannot comment of the DIY kits, but you may be a bit off as you get the right size battery pack.
Mike
Electric Yacht Pacific
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Posted by: mike@electricyachtssocal.com
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