I have the EK center console from cup holder to armrest in my EG. I LOVE IT. Actual cup holders and a big armrest.
There wasn't much modding to do. Just trimming the top of the front section of the EK console to fit around the lower part of the EG console. Then I screwed the front of the EK to the Eg console with 2 screws. that made it pretty solid. the rear arm rest section is loose cause I don't have a bracket to hold it down, but it is fine, it doesn't flop around.
Don't mind the mess, it's my work car and gets abused from time to time.
Here's some pics I took really quick to give you an idea