I will attempt to answer all of the above questions. The M106 does not come with the crew heater; I scratched that, the ramp cable assembly and several other deleted details. I am not going to do the interior on the M577. I had thought about it, but the diorama I have in mind only requires a partial interior, and that's what I am planning to build. As far as which vehicles I plan to build, this is the planned list so far: M113A1, M106A1, M577A1, M125A1 (81mm mortar) , M901 ITV, M163A1 Vulcan and the M113 TOW (w/ TOW Cap if I can get pictures or jog my memory. In the 70's when I was a new 2LT, I wish that I had been smart enough to take pictures of the tracks and their interiors. Seems all I was worried about back then was getting through my three year tour in Germany with out freezing.
As far as lessons, I am flattered! I have never considered my work on the level of trying to teach others. However, I will share my knowledge or answer any specific questions that anyone has.
Thanks for all of the encouraging comments.
Dave