any one can help on how to buy electronics online but do ONLY CASH payment on delivery and also the best website to purchase ,have futaba rx and tx want to build a 24 WS plane ,any HELP with were to buy a good combo thats prop,motor,esc. esc should have  Futaba connectors as it has a little protrusion on  one corner so they cannot be plugged in wrong, some help guys

Please look here.
http://www.rcindia.org/rc-india-forum/the-rc-india-gems/

At the top of our forum page it is linked. There you will find supplier's mega list.
Among them, you can purchase from
1. RCBazaar,
2. RCForAll
3. RCDhamaka
4. RCHobbyAddict,
5. RCElectro.
6. Hobbysea etc. etc. These are very common shop where from we frequently purchase.