Eng Rebuild Help.. Oil, Water Pump And Head Quest?

[gtRHINO]

hey guys, im currently rebuilding my 89 gtr r32 eng and im decided to get an after market oil and water pump. the problem is i dunno what good oil and water pumps are out there. I was considering purchasing the N1 oil and water pumps but i dunno how much better they are compared to standard ones and what other better ones are out there.

One more concern is... Should i get the head rebuilt? so far im just goin all out on the bottom end with forges etc, and was wondering if its really necessary to rebuild the head or can i leave it as is.

Any advice about the oil, water pumps and head would be great. fellaz.... ch