The Flysky 3 channel radios I use on these trucks are now on ebay for $32.50 for one, $31 each for two, with free shipping. I just ordered two more, and you can find them here
https://www.ebay.com/itm/Flysky-FS-G...72.m2749.l2649
I have nothing to gain here and I'm not advertising for anyone, just letting guys know that this is about the best price you'll get on these, and they usually go for $40 to $45, plus shipping.
If anyone finds them for less, please let me know.