Fuel Line System

First off, make sure you mount the pump so it's inlet is below the outlet of your cell. If your cell has a sump in it (hopefully) at least try to get the outlet and inlet in line.
Use an open pre - filter before the pump, 85 micron minimum - 100 is better. Make sure to have a good post filter, someplace before the fuel get to the regulator preferably. I would also recommend either a prefilter with a shutoff valve built in or a separate shutoff valve before the pump. It makes cleaning / changing filters so much easier.
For that Black pump - use at least -8AN line on inlet to the pump - you can go larger but the pump has a 3/8 npt inlet so you are really limited by it anyway. Outlet - I would recommend no larger than -8an line up to the front.. If you run a return line I would go smaller on it, say -6an..