Thanks guys,

Regarding the speakers, the bottom line is that the speakers sound great and they give me enough room in the hull for the smoke generator and then some. The generator works really well almost too well it smokes like it has blown head gaskets, so I may install a couple of diodes to reduce the voltage to the generator and consequently the level of smoke output. One more thing about the exhaust system I had to drill a small hole in the bottom of the plastic cylinder that the brass tubes lead into to prevent water build up in the bottom of it, so it drips a little water when the smoker has been run.
Here is the link to it running at Danville last April with the smoker operational. http://youtu.be/IHuvtLBw-ko
Next I painted the upper hull sides Glacis and rear plate I waited to do this as I didn't want the water/glycerine mix to spoil the finish while I was testing the smoker.
I had previously added the secondary starter crank hole for the engine upgrade the Germans made during the war.

Steve