Sounds good. Although, if I understand it correctly, the packaged radios in the RTF kits aren't buddy-box ready, right? Well, unless you get something like a Hangar 9 or something, but that's quite a bit of money.
As of now, with just my Stryker RTF radio and whatever plane he chooses (like the hobbyzone supercub or something), I doubt they'll work as a buddy-box.
However, I am strongly considering buying a new radio/servos for my Stryker, as it's a bit shaky alot of the time, and I'm always having to give it almost full down elevator trim, to keep it level.