Welcome back!
If it was me I'd upgrade all the servos to a 59XX or 79XX. Those are much more precise and you'll have better servos if you move up sometime. I use A123 batteries exclusively now. Very nice...that is what I'd recommend.
That radio would be a good choice.
The QQ Yaks are some of the best flying airplanes. You'll love it...and the YS 140 will power it great. That would also be a great plane for the new 30CC gas engines like the DLE, it you ever decide to get away from glow.
You'll like this set up.
Thanks
Barry