As far as the pumping of fuel goes, they are essentially the same. For that matter, any pump assembly out of a kawi with that bolt pattern will likely work; I've interchanged ZX6/Concours/ZX14/ZX10R pump assemblies more than once.
As far as the fuel level sensor goes, that will specifically be different from tank to tank, pump to pump.... I'm not exactly familiar with how the Gen 5/Gen 4 do it, save that is usually just a passive resistance circuit attached to the pump housing. If it doesn't have a float, then it is just giving you 'best guess' based on that circuit.
Attack life... it's going to kill you anyway.