Siebel Ferry (1/300)

Here's a 1/300 model freight-carrying Siebel Ferry for coastal naval wargaming.
This is supposed to represent an earlyish version for carrying freight (the flak version has a different superstructure and will follow eventually). It is a mashup of various illustrations and plans - these vessels seem to have been cobbled together with little thought for standardization. Nonetheless, if I've made any glaring errors, please point them out to me.

For deck loading and armament, I suggest using gun