[PNW Fireguy]

While you can certainly throw additional financial resources at this issue I would stop and ask exactly what it is you are trying to power. This will allow you to create a complete picture of what you will need rather than possibly installaling and/or replacing multiple components as you discover they may not suit your needs. Replacing the OEM connector and cabling should be fairly straight forward as you can reuse the existing penetration as well as utilize the existing undersized wire as a pull string for larger conductors.