Warren, I don't think that Apex control module would do well inside the cabinet. I had my shorted out and made the whole house smelled like burnt electronics. Wife was not thrilled. Just a thought.
BTW, the Vancouver island reefers has unanimously voted your sump to be the sump of the year on their facebook page.
The request they had is to change your cabinet doors to ultra clear glass instead.
I personally think it is a great idea.