A facet would do yes. PSI doesn't really matter, it just needs to keep up with the VL pump flow wise. But if you have your return line coming back into the surge tank then its doesn't even need to flow as much as the VL as fuel is being returned to the surge tank.
Probably not. Why? - Most intank pumps have a relief valve on the that releases fuel out of the body of the pump. This is fine if you use the tank, but used as a lift pump it will hose down your boot.