Well all the plastic is here so we will start the build today. We got 4 of the 9" ultrafine pore stones and they should be here in a few days. I am going to borrow a diaphram air compresser to find the optimal air rate for the skimmer and will order the pump from there. I did find some really cheap pumps available that look like similar to others that I have seen but only like 60 bux. I will try to find out more about them and let you guys know.