If you powdercoat your alternator mount then make sure you run a ground wire to the alternator casing. They tend to not charge the battery if not properly grounded. I found out the hard way last weekend when my battery suddenly died. Apparently I had been running off my battery for two river trips in a row.
I know that you know an alternator throws more than 12v.... Got a volt gauge in that bad boy?
Just effen with ya, but a good tip none the less. You fockers have a good time out there this weekend.
Chris