Lexel, good to see you back! I was getting worried. 
Here’s a pic of the E14 III from my review
Based on Lexel’s D4 pic of the original boards from Post #11, it looks like the wires and screws are in different locations. Doesn’t look like it’ll work, unfortunately.
After having made one for my TO50R, I’m tempted to try one for the E14 III. I’ve come to rather like the aux boards. KawiBoy1428 has said the driver is glued in, so that’d be fun… 