Mike, you've been in the planning phases for 3 years. Make it happen already
I am also hopeful this gets going in the next month or 2, I'm ready to see what 3 years of planning comes up with
Seriously, good luck Mike. I can't help you too much except to say that I like internal pumps (personal preference). The Mh's are a good choice, IMO, coming from someone that has T5's. And a 40 gallon sump is a good call for a 120. That should be adequate, IMO.
So, here's a bump.