Definitely keep the trainer. If you are going to go for a second plane, that's good, your choice is a tad big, in my opinion. If you want something larger, I would opt for something in the 60 size, such as the Sig Four Star 60 or the Tiger 60. If it were me, and it was several years ago, I would go for the Tiger 60 with a good OS .75 AX on board.

Your choice of radios is fine. There are several on the market that are outstanding options. For instance, the Spektrum DX7 is a fabulous 7 channel radio. The Airtronics RDS8000 is an outstanding 8 channel radio. Both are 2.4 GHz radio systems. The DX7 comes with servos, and is about $350. the RDS8000 does not come with servos and goes for about $230.

For servos, you have many choices. You do not need high torque servos for either plane I've mentioned. Mainly because the wings will have a servo on each one so it will share the aileron load. The elevator only needs one servo and will operate just fine with a standard torque servo, as will the rudder and throttle. So, you can get those for around $20.00 each, usually a few bucks less, that's right at $100 bucks. You can get cheaper servos, or should I say less expensive servos like Hitec's that work just fine.

Either of those planes will work out just fine with standard equipment, as I've pointed out, and as I've done with the Tiger 60. I flew that plane for about two years and would still have it except someone wanted it badly and bought it from me.

As I said when I started out, don't sell or disassemble your trainer. You will be surprised how often you will want to go back to it and fly it, especially on one day when you are at the field with both planes, and you flew the batteries dry on the larger, more capable model, and you want something to fly.. voila.. the Nexstar. Also, at some time, you will want to go back to basics and fly the trainer just to brush up on flying a basic airframe. So, don't get rid of it, nor tear it apart for components. The components are inexpensive enough to stock a new plane with new equipment, especially if you buy a radio that already has servos with the system.

By the way, I have a Tiger 120, which is very similar to the Sig Four Star 120, and it's a great flyer, but quite a handful for a relative beginner to put together. I don't know how the CG would work out with the Four Star, but it was a bit of a challenge for me with the Tiger 120. So, you really should move up in size slowly, and the Tiger or Sig Four Star 60's are great choices. They are larger than the Nexstar and quite visible, but the right size for a second plane.

CGr.