I dont know how limited your budget is but you might want to look into getting a SPAD. YOu can build the airframe for around $10 USD. Then find yourself a good USED Thunder Tiger .46 pro $50 USD. Then save up to buy a radio system maybe around $100 USD (dont know the price on these b/c I buy the high end computer radio stuff). This hobby is expensive. I started when I was your age but I was lucky enough to get my dad involved as well so he bought most of the stuff for me.

Another good suggestion might be something like the Sky Skooter put out by Hitech. I think these are only like $100 or so for the whole set up.

If your set on using that .049 you might look into what they call an ACE Whizard or (if they still make them) a EZ BEE 2. The EZ BEE 2 was a ARF sold about 10 years ago. The Ace Whizard is a cheap kit that I think is still around. One suggestion I heard in here that makes sense is for you to visit the 1/2A forum here at RCU. These guys would know what size plane would fit your motor better than anyone.