Great links and thoughts ... especially taking the sticks up to Yuba City!
The lift is about 6" above the tank, but Aeromotive recommends their pumps to be at the level of the bottom of the tank or below, and is a "push" not a "suck" system. (although I'm thinking that this sucks). The pump has to work harder if it is above the level of the tank, causing more heat, especially in altitiude and 100 degree weather = potential vapor lock.
And forget about the addded heat in the engine compartment!
I believe the intake tube is large, maybe 3/8" or 1/2". Building the fuel sump and welding is only a couple of hundred, while adding an in-tank pump or building a new tank, or Canepa is ... $$$
As I recall, the CE sump is about 0.5 gallons. Consider the fuel sump as a small tank, but I can make it bigger if needed? What is the optimum fuel sump size (for the street? or for the track?)
The CER tank had a fuel outlet on the right side, bottom of the tank, but the weld/bung cracked and we had to put an inlet at the top (for the 2005 WSCB!).
Will also add a shut off valve to make changing fuel fiters easier. Also, living in San Francisco and going up a hill ... I want to be sure that fuel is getting to the pump.