Fuel Pump and Injectors for 98 4.0L?

Where can I buy the complete fuel pump/filter kits and new injectors for a 98 4.0L besides the dealer? They want $900 for parts alone, which is just nucking futs to me. Will a Mustang walbro 255/lph pump with 24lbs mustang injectors work? If so, I will go this route cause I have those already.

Go to http://www.fuel-pumps.net/fuel-pumps-jeep-cherokee-1998-6-cyl--4-0l--s--e-f-i-.html for the fuel pump and http://www.fiveomotorsport.com/Injector_SetsJEEP.asp for injectors.