Go with as high mah lipos as you can afford,this will give you much longer runtimes for one.Also go with the gt3c radio its a much nicer better radio.Ive had good results with zippy lipos,theyre reasonably priced.Or try hobbyking for your nano techs theyre cheap also.Not familiar with your motor but id be looking to use a 40 mm motor minimum,something like a 4082,4084 sss ,leaopard or tp motor.Id also be going with more than 2 s and a little less kv for a 36" hull.
Mart

http://www.ebay.co.uk/itm/FLY-SKY-FS...item35c5c343b2

http://www.hobbyking.com/hobbyking/s...Lipo_Pack.html

http://www.hobbyking.com/hobbyking/s..._TRA2843_.html