I'm new to this hobby and need help. I'm building a Sig Kadet LT-40, my first plane. I'm putting a OS Max SF46 on it and using a Futaba 7C TX with a FrSky TFR6 RX and two S3003 and two S9001 Futaba servos. What RX battery pack would work well with this setup? Thanks in advance for the help.