I echo mss' comment - the OEM pumps do seem to last very well. Mine was OEM until around 6 months ago, and it wasn't faulty - just getting a bit noisy.
I'm glad the issue of 1/4 tank and the fuel distribution has been mentioned before you found out the hard way, as it'd be a faff removing your rear bench at the road side!
What our cars need is enthusiasts who aren't afraid to step away from the 'original' parts though, and for this I commend you.
