While you are replacing the pump, you might want to consider one of these kits.
Vulcan Pusher Pump System™ for 98.5 to 02
Not only does it eliminate the restrictive banjo fittings, but it moves the lift pump to the frame under the cab and run 1/2 fuel line with AN fitting to the OEM filter canister and to the injector pump. You keep the fuel heater as well. It has worked well on my truck
The Carter lift pumps do OK but you have to keep a close eye on them. The jury is still out on the Airtex pump which is replacing the Carter lift pumps. As mentioned the FASS is the top of the line.
This is the set of gauges I have installed on my truck. Aside from a minor adjustment to equalize the pressure in the fuel isolator, the gauges have been trouble free.
ISSPRO Dodge Ram Gauge Package #1 for 94-02
If you are going to install larger injectors, you will need to keep a closer eye on the EGT's especially if towing.
A fresh OEM paper filter will work marginally in the stock airbox but will set the filter minder easily with some miles on it. I tried the aFe drop in ProDry filter and immediately lost 4 lbs. of boost from the stock paper filter. I am probably going to go with a BHAF and outwear prefilter next. I am in pretty dust conditions off road checking on logging and timber operations so I need a good paper filter. K&N filters flow a lot more air but they also let some dirt get past the filter too in dirty conditions.
Anyhow, just my 2 cents worth on what I have experienced since moding my truck. Good luck with yours.