[MOD] R2-M5 and other astromech color variants guide

[Veynom]

Simple MOD from the official 75308 set, here is my R2-M5, a color variant from the famous R2-D2 astromech.

R2-M5 by Veynom, on Flickr

All features are maintained.

R2-M5 by Veynom, on Flickr

And here is a table indicating some other possibilities:

R2-D2 Color variants guide by Veynom, on Flickr

So let's see what is easily possible:

1. Very easy:
   1. red, blue, dark blueish grey, reddish brown and black:  A couple of part swaps may be necessary, but it will not affect the color design, model integrity, or play features.
   2. Tan, yellow: very minor change of design. With the release of the Daily Bugle set, the missing yellow part 11458 is now available. 
       
2. Easy (minor loss of color design)
   1. Orange: Some simple swaps to replace non-existing parts but the dish at the top of the head will be light blueish grey.
   2. Dark red: Part 11458 will need to be replaced by the white version. The dish at the top of the head will be light blueish grey
   3. Bright light orange: Part 11458 will need to be replaced by the white version.
       
3. Somewhat easy: (more visible change of design)
   1. Bright Pink: Part 11458 will need to be replaced by the white version. The dish at the top of the head will be light blueish grey AND the front opening dark blue curved slopes will need to be replaced by 3x1 curved slopes assemblies. The head may be less sturdy, particularly during the assembly, due to the lack of corner plates (2x2)
   2. Medium Azure: it could be easy, but the lack of 1x1 brick modified with stud on side forces us to find another solution. I need to investigate.
   3. Dark green: More difficult, particularly as 2x2 plates do not exist in that color (on top of all the above issues). 

Next: we should start seeing more color variants using the below:

• A white head;
• A DBG or LBG body;
• Blue or read bodies;
• A classic space version ?

Feel free to make your own version. If someone knows where to find the Studio file for that set, I would gladly grab it to experiment as well.