RE: to imac or not to imac
You can fly Basic with any size plane. I have tried two 1/4 scale models. I am now flying a 33% Cap and I will tell you I look better than with the other two planes. I would recommend something this big. I get all my stuff used, but if you like new, I would say that the ZDZ80 single and H9 33% Extra are your best bet.
The combination will be about $600 more than a 1/4 scale plane but worth it.