Well, I finally made a bit of progress over the weekend and have most of the upper half of the build done (except for hands and head). I decided to follow the main painting scheme and will use the following colors:
Vallejo Metal Color (77712) Steel for the inner frame.
Vallejo Model Air (71088) French Blue for the blue parts.
Mr. Paint (135) Insignia White for the white parts.
Mr. Paint Interior Grey for the grey parts.
Here are some of the parts on the alligator grips, primed and painted:
And the assembled parts (chest, shoulders and waist):

The arm has a hidden compartment for the laser sword:
Now here is the tedious process of cleaning and sanding all of the parts prior to priming (these are all of the parts for the legs and feet):
