Tower has it scheduled for late June, however, their inventory does not always arrive on time. That's alot of $$$ to drop on a radio. Out of curiosity, what features are you exactly looking for?
I bought my M8 without any reciever or servos. I then bought the Novak Synth RX and TX module and now run Synth. You can try that if u don't want to wait and Tower carries them.