if you already know you'll have weight problems i'd go with a plett motor, wether it is the advance or the 30-9. it is a very light option in both cases.
i'd also go with the new G6 TP 4500 mAh. we are using 4000 mAh zippy lightmax but if you have some cross wind taking the plane out and you need to fly big, you'll abuse them. therefore, you need to be very careful on throttle managment. if you are considering 5000 mAh. also consider F3A unlimited batts are very good and light
for rx batt a 900 mAh batt will last more than 8 or 10 flights per day. Powerbox is also a good choice... I'd suggest you not to use hobby king batteries for RX. the 900 rx batt is around 20 to 30 usd on thunder power. not worth the risk.
i also use the BLS servos and i can only tell you they are AWESOME...
good luck on that!
Marcelo