if you have trouble buying li-poly of ebay go to this site they seem pretty cheap
http://www.indoor.flyer.co.uk/cells.htm and for the airframe goto this site if you mite like the looks of a shocky also i've spoken to the shop a couple of time's and they are really helpful sorry the site:
http://www.sussex-model-centre.co.uk/item.asp?ID=2662 also you can get your servo,s from here as well. for the rx your best bet for a cheap one is on ebay i am always buying most of my stuff of there. I'm not sure where to get a cheap brushless from though still looking myself hope this is of help to you