RE: ARF or RTF to get the rust off.
I appreciate all the input, I am most likely going to get that mustang kit. That will allow me to get in the air without having to deal with cleaning up my old engines that have been put away in storage and the uncertainly of whether my old radios are still reliable since I think the box they were in was accidently dropped off of a shelf when my kids were looking for some stuff in storage and the batteries being old. I have flown before and still have 3 unbuilt kits to finish and none of them will require more than 6 channels and while it is possible one day I might want more, it is unlikely.
When the issue of radios were brought up I was more concerned that the radio supplied with the Mustang was inferior in quality as opposed to wanting something with more channels / features for the future. It seems that it is a quality radio based on comments here and haven't really found any bad reviews that outweigh the good ones.
Thanks all for helping me get back into things easier.