G4200 wiring assistance

[ddg]

Got an older G4200 that I use very occasionally to pull a small trailer. No mowing or anything but just pull the trailer. Over the winter, an electrical short causing all the wiring to melt. I have removed the entire melted mess and am attempting to get it running as simple as possible. I have replaced the gauges with automotive gauges and sender that obtain power from the battery. Got a two way rocker switch that get power from the battery to heat the glow plugs, prime the engine, start the engine and provide power to the fuel pump.
Here is my problem, don't have much of a wiring diagram, but have gotten a new smaller alternator and regulator. Believe it has 2 blue wires and 1 red. How does the current from this alternator get to the battery to charge it? Thanks

 

[PoTreeBoy]

There's a WorkShop Manual to download on KubotaBooks that includes a diagram. The smaller rigs have a dynamo instead of a regular alternator. The dynamo outputs AC on the blue wires that is converted to DC by the full wave rectifier in the regulator. I'm no EE, but if I read the diagram below correctly, the regulator just shunts excess current to ground to regulate the voltage output on the red wire.