Well, after reading responses, researching, thinking, and discovering Memphis actually has a dive shop, that doesn't fill past 3000psi, I decided to get 2 Blue Steel Faber LP120s from Leisure Pro. They had a good price and free shipping, which arrived in 3 days. They are heavy for sure, and their buoyancy is, rounded 4 pounds negative filled, and 4 pounds positive empty, so it doesn't save me any dive weight really, but it will supply me significantly more gas, which will hopefully prevent me from cutting people's dives short anymore. I was really hoping to find the LP in galvanized, but the only one Leisure Pro had in LP was hot dipped galvanized LP85s.
Thanks for the guidance and tips everyone.
Edit... link for the specs for the tanks..
Blue Steel Scuba - Cylinder Specs
Faber Low Pressure Steel Tank