Longer-term if you want to keep your costs down you should go for a quad which is more stable than a traditional helicopter and costs a lot less in repairs.
If you insist on it being a traditional helicopter you could get a trex450 clone from hobbyking.
Thank you. These look like some good options.
i use a exi heli 450 for fpv .. but with gps and osd and all it ends up 1000 grams of heavy ..