So, I got busy and painted the model in the colors for JG 131 in East Prussia in 1937. Used Aeromaster decals from the Birth of the Luftwaffe series for He-51s. The red stripe was painted, a decal for the circle and swastika. Paint is Tamiya X-18 Semigloss Black and my mixture for RLM 63, using Tamiya RLM Grey, Flat White and Buff.
Next up, attach the windscreen and do the (thankfully simple) rigging.
4 attached images. Click to enlarge.