Just an FYI. If you want to build Walter Shaffer's machine - with the "blue birds" - it looks like you'll need to modify the upper, forward fuselage. His machine had a single gun and was known as the MoS.27.C1, while "out of the box" it looks like the model will build the MoS.29.C1 (twin Vickers version).
I suspect there will also be modification needed if you want to build the trainer version with the 120hp LeRhone instead of the "standard" Gnome engine.
I already performed some research when I was building the beautiful Czechmaster MoS Type AI.
However, I still haven't found decent photos showing the modifications necessary to "backdate" the MoS.29.C1 to the MoS.27.C1. If anyone finds some, please share!