72 GMC LWB Rear Tank Suggestions

[utee05]

Hi All,
I finally saved up enough to buy a rear mount gas tank. I have been trying to figure out which one would be best and easier to install. I have seen the LMC, Brothers, GMCPaul, Boyd, and Early Classic tank kit.

These are all roughly around the same price so I am not sure which one to get. I will be looking to get the side fill version.

My truck is a 72 GMC with HEI, A/C, internally regulated alt and Q-Jet. My main reason to move the tank is to get room behind the seat so I can install some nice audio equipment.

Any help would be appreciated. Also what else is needed to besides these 'kits'?Would I need to get a sending unit as well?