Regarding shore power, my Heat doesn't have it, but I have my own version.
I have a 12V 2 circuit, hard mounted charger installed under the rear seat. It's great for keeping the batteries up (computer controlled, won't cook them), and I carry an extension cord for dockside overnighting. You can run the stereo, fans, cabin and cockpit lighting, sink, transom shower, DVD player, charge cell phones, etc.
If you wanted to, you could also carry a small portable generator for overnighting away from 120V.
Just make sure the exhaust is down wind, so you don't get gassed.
Regards,
Steve