RE: parkzone t-28 receiver?
Not to rain on your parade but from what I have read on other post about the T-28 the receiver is junk anyways. There were several reports of interference reported and crashes caused by this. You might want to look into new radio system altogether (transmitter/receiver).
I did a little research on this plane because I thought of buying it. Personally I would still buy the RTF version because it comes with the battery and charger which I need, but would change the receiver to work with my Futaba transmitter(which I already have).