Great 2nd plane - Phoenix models Dolphin 40. You're equipment and engine from a 40 sized trainer will move right in. ARF retails for about $100.00. Perfect covering, Pre-pinned hinges, and a lot of other work already done when you open the box. I would look at a radio that can be used for multiple planes. The key to this whole hobby is having equipment that can be used on all your birds. Ask the electric guys. You don't want a different type of battery and radio for each plane you have. You want to be able to grab a couple of planes, your field box, and your radio and head to the field, not spend half the day sorting out what goes with what.

Just my .02
Mike