Make sure you get an OEM pump or one that has a check valve so that fuel does not get into the cylinders if the system stays pressurized. That can lead to hydro lock and destroy the engine. I beleive that the OEM pump simply allows the pressurized fuel to flow back as opposed to potentially seeping past the carbs and into the cylinders.
Also, keep the old pump if its bad points and replace them and keep it as a backup as these tend to fail often.
Good idea to change the fuel filter as it is easy to get to with pump removed. I will replace mine every 2 years or 20,000 km from now on