Not an expert here but what means are you going to use to recharge those batteries? You need some type of solar charger or generator to keep the batteries up. The 6volt batts are good because they have a higher amp hour rate so with frugal use of power in the rig you should be fine. You will need a way to monitor the charge of the batteries too so that means a multimeter and learn how to use/read it. Look up the numbers for what a fully charged battery should be and what the discharged number is. You will have to recharge them every day most likely. It's not that complicated but when you are unfamiliar with something there is a learning process as you know.
