LOL you're kicking the hornets nest!
Down here (Atlanta area) that boat with trailer would probably sell for 300-400 but it would likely get listed for 500 or more (IMHO!!!!). This is without the fish-finder. That you would likely want to list on it's own.
What limits the value is the length and width of the boat. It's perfect for an electric only lake because you're not going to be tossed around or potentially swamped. It would be a different story in the high-traffic areas of the big lakes here. I'd be wearing a PDF for sure!
That being said - what you turned that boat into is pretty sweet compared to what you started with!