The engine on our Steelaway 35 is a rebuilt Perkins 4.107 diesel. The diesel is stored in two separate steel integral tanks that are coated with epoxy paint. Total fuel capacity is approimately 170 gallons. The engine is located beneath the floor of the pilothouse.
Lots of stuff to figure out on the electrical. It's mostly put together and I have a lot of tidying up to do with the connections. The basics are a shore power connection with a 1:1 isolation transformer that leads to an overhead 110v panel. The feed goes through a transfer switch that can be fed via 3 sources (ie. shore power, generator, or 1500w inverter). The 12v system will be fed via two separate battery banks, a single 800cca starter battery and a pair of 8D deep cycle batteries. The 12v panels are split into two feeds, one that will control most of the items that will be utilized while on shore power that can be fed by a 12v power converter which will work off shore power to save the batteries while plugged in. The second panel is strictly fed by batteries. The system has a WC40 West Marine Smart Battery Charging system to keep the batteries topped off from shore power and uses a Balmar 100amp alternator while running the engine.