I finished up rewiring the 230 tonight and got it to run. It runs well, like most of the 227 family.
This particular locomotive had the early flush jacks for the connections to the tender. They go with the large plugs.
The only difference between this locomotive and the 227/228 is the number on the boiler front. All the differences between the 227/228 and the 230/231 are in the tender.