Living close to the hurricane belt and I'm looking for a reliable way to use a 600watt 12v-110v power inverter on my 78 k20 so I can run a small tv and dvd player when the power goes out. Anyone doing this? I already swapped over to a latter style higher amp alternator with the big serpentine style drive belt off a late 80's impala so that helps...A local shop also recommends using 2 batteries so I'm looking to convert and know the diesel trucks came factory with 2. After a trip to the boneyard, I found that there is a solenoid with multiple triggering wires going into it on the diesels...isolating the second battery or what? I've never fooled around with the diesels at all so I'm at a loss for what all the wiring is doing. Also, would like to get a factory drivers side battery tray for the 73-80 pickup which would be different than the latter years but have never seen one myself. Does such a thing exist? Any help would be appreciated!!!!