Quick question..Local guy is selling c&d tech batteries for pretty cheap, and I dont gotta worry about shipping. They are 134.8 AH, wondering if I should get one or two? Im currently running a american bass 120.1, pdx 150.4. Big 3 is done, 160 amp alt, and Im going to get a g34 for under the hood. So like I said would one battery be good enough to support that?