Didn't I read that while you have the tank dropped you should cut an access door in the floor to avoid dropping tank for next fuel pump ?
That isn't necessary on the newer GMs. The late 1990's and early 2000s were notorious for burning up fuel pumps. I ran into many vanners that did just that. My 1998 went about 185,000 before the pump died. Most puked at 100,000. I attribute the extra life to fueling before reaching a ¼ tank and changing the in-line fuel filter every 30,000 miles. The original pump was replaced at a dealership with a pump that GM guaranteed for life.
My 2004 has a fuel pump with an integrated fuel filter. It lasted 732,000 miles. Even if I only got 50,000 out of the original pump and 500,000 from the replacement, I doubt I would be putting in a 2nd replacement pump at 1,000,000 miles.