You won't worry about more sattelites unless you use a data logger or telemetry, the more satellites the fewer signal losses or holds. Its a scary fact that these things have even millisecond holds in a flight. Started with two, then added 3rd then 4th.
Use JR power safe 12 , dx-8 and intelli/booma match boxes all HV hitech. Fromeco 5200x2 on a wolverine batt share switch in two different 40%ers, same set up except JR matchboxes in older plane , and can put in entire weekend of IMAC competition without worrying about charging. Fromeco power up cricket is good safe measure for keeping voltage constant also.
Eq6 is good choice , stick with it.
Pull pull if cg needs to be forward, dual push pull is easier to set up and plenty powerful if balance allows you to put em back that far.