Thanks Joseph! I left the ridges unfinished because I figured those'll get cut out when I make the mobility cuts. If there's any more rough edges after the material removal, I'll finish those up and polish/touch up.
Airbrush Paint Formula
Here's the paint formula as promised.
I used Createx Wicked colors: Opaque White #0030, Black #0002, Yellow #0003, Red #0005, #5620 Gloss Clear with #4012 reduced, #4011 for undercoat.
I made 2:25ml premixed color dilutions for Red Yellow Black (40 drops of the primaries in 25 ml of #0030 White, where 20 drops ~ 1 mL ).
These dilutions served for experimentation with quantifiable results. After much trial and comparison, I arrived at (20 drops White [undiluted], 3 drops Black [diluted], 4 drops Yellow [diluted], 1 drop Red [diluted], 3 drops #4011 reducer). Give or leave 1 drop Yellow; I had to balance out having too much yellow haze from the airbrush edges vs it being a bit lighter so 4 or 5 drops still might yield good results. The ABS paste lines were stained and rather dark and had to be primed and sanded otherwise it would leave a residual dark shade. After several coats of white with .3mm and let dry, I then used 10% #4012 with the #5620 Gloss and sprayed extremely wet with .5mm.
Hopefully someone looking for a color match will find this useful. No Bothans died for this information.
EDIT: I think I found a better code: 60 drops diluted white, 5 drops black , 7 drops yellow, 3 drops red, 6 drops #4012 reducer. This time I sprayed with a .5mm needle.
Had to respray because the E6000 caused some paint damage. Best to tape the edges (not cover stripped) to trap the E6000, and peels away clean. Also learned that sanding to 3000 grit will yield a better blend of colors. I'm super impressed with how the repaint turned out compared to the previous... contemplating reshooting the left thigh as well...