The red trim along the leading edge of the wings is nothing like it was on AE's aircraft either. See photo 1 for AE's ship and compare it to photo 2 the other Electra.
I'd agree on the configuration of the leading edge stripes - the one on Amelia and Fred's Electra had a graceful curve leading to the back of the engine nacelle - AND a very thin black strip to separate the International Orange (TIGHAR has a piece of her plane with that color, it is not red) from the bare metal.
LTM, who has a lot more gray paint than he will ever need,
Monty Fowler, TIGHAR No. 2189 ECSP
EDIT - Thinking back (always better to do that before you post), I believe TIGHAR was able to look at a piece of the Electra from the Luke Field crash, to verify the paint color, but it was returned to the owner afterwards.