Hi Myka, in theory your plan should work. It might be a little tricky to get it dialled in but once you do it should be fine.
If I could suggest that you put the fuge just a little higher than your DT and let gravity move the water from the fuge to your main tank. That way you create a nice little highway for your pods to migrate to your main tank without being chopped up by a pump impeller.
Oh yeah I'll send you the pics of the hammers shortly
