Got the kettle built out tonight.... I decided on two ports. The outlet (right) has a dip tube, the inlet (left) has a dip tube at right angles to the bottom of the pot to create a whirlpool when running. I ran it with water, boiling, tonight and everything is watertight. Two more major pieces parts to go, the plate chiller (mounting it to the bottom shelf) and mounting the RIMS tube to the leg of the table. Step bits and cutting oil if you want to do this. And patience.