Personally, I'd change the desgn as I mentioned before to model off a Aquamedic Turbo 5000.
http://www.aquadirect.com/store/cust...cat=204&page=1
I have that skimmer it kicks ass and is super simple. Wai's had it on his display coral tank, I think Big Als has on on the sales floor. (it has two pumps mine only has one)
You can come see mine if you like.
Dave