[asid61]

Looks good. The only things I am wondering about are:
Why did you choose to use the top of the module as your cylinder attachment point instead of the spacer closer to the front/back rail? Clearance issues?
Have you considered putting the screws for mounting the cylinder mount diagonally to each other or front/back instead of left/right in order to better take the loads from the cylinder?
What made you choose the double-omnis in the middle over a suspension?