Just scan through photos on this site under TWA MD
-80 - I just finished the same model - that's what I did - if it's any help, wings and tail are all grey(I used aircraft grey) with silver leading edges. I painted the ice strips on the wings. The top white stripe is in line with the windows, just a little below them. Engines and pylons are red. Belly is natural metal with grey at wing fairing. All strakes and antennae are white. Exhaust is silver(maybe touch up with a little exhaust stain). This a/c has following window pattern; L/S - 33 to front of emer exit, 2 exits(with window between , of course), 10, door, 2 blank, 2: R/S - 34 to front, 2 exits, 18.
Door outlines are actually red/white and decal is grey, but what-the-heck - Finished product looks great!!
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Photo © Joe Pries - A.T. TEAM