fuel upgrade suggestions

[ROIDMONKEY]

basically im upgrading part of my fuel system, got me a greddy intake manifold and im planing on going top fuel rail, there is many different brands and they all look the same different colors and of course prices . what i have right now its a walbro fuel pump,nismo 720cc inj,and nismo FPR . can i use the nismo FPR with the top fuel rail? does the nismo 720cc fits the fuel rails? ( i assume yes ,just wanna make sure)
if u have a top fuel rail setup please help me with suggestions