Terry,

Having just $300.00, it's going to be hard. You can look at the classified's here and also on E-bay and maybe find one new. However, used radios are fine too! You might look at JR radio's as well. Any radio that has at least 6 channels and be designed for heli's that incorporate ccpm mixing and travel limits w/ exponential, sub trims and ease of programming. My suggestion would be to get on one of the websites and just read features. Once you've found one you like then you can go to the aforementioned web sites and try to get it cheap (new or used).

Hope this helps.