tower trainer mkII arf 40 with a 45 or 46 2 cycle 80 bucks, or something similar. Even better would be an Sig LT 40
Here is why I think this type of bird will do the trick:
Good flight charecteristics
Easy to repair and a kids trainer WILL need repairs. this is my major gripe with Nextstars.
Cheap but flys well
Standard equipment will allow progression to other planes later.
It is a plane DESIGNED to meet your needs