Anybody seen this done before ???
Do you mean
done this before on a Brick? By now you understand how the Brick ignition and ECU work together. You also know the requirements of the Gixxer c-o-p system. How would the Brick differ from the Gixxer?
From what I've read in the last five minutes, one challenge to the proper function of coil-on-plug systems is excessive heat. Also, fitting them into the space provided by the head for the spark plug might be challenging, so measurements must be taken. You're the innovator; take up the challenges and lead the way.
You look to be doing pretty good work so far.
I think yours is an interesting idea although I'm too insensitive to be repelled by the look of Brick coils.