| Thanks for the reply. | 1. Aileron control would be nice but it is not a must have.
It's not really a big deal. As long as the plane has plenty of dihedral (and many gliders do), they'll fly pretty much the same with ailerons as with just a rudder.
| 2. The bigger the better but it has to fit in my station wagon.
Then you probably have room for a massive 12'+ plane then. However ...
| 3. Yes I want to thermal.
To be fair, all sailplanes can thermal. (Any plane can thermal, actually.) But the lighter the plane is, the better it is at it. But the ligher it is, the less it can handle wind ...
| 4. No fancy controls; let's keep it simple.
Actually, spoilers are nice to have. If the plane is a good floater, it can be hard to bring it down on a good day. And they're not really that fancy -- though if your radio only has four channels, and your plane is electric, you really don't have a good place to put them, unless you put it on the stick where the rudder normally is (and your plane doesn't have both rudder and ailerons.)
| 5. Yes I have a standard 4 channel radio withe four standard servos I | want to use.
That limits what you get considerably. You'll want something on the larger side if you use standard servos.
| 6. I would like to do it as cheaply as possible but still have a nice | looking plane.
Well, once you get much above 2m, the price starts going way up with an electric. But most 2m gliders use servos smaller than standard sized nowadays, so you might want to replace them. But they're getting pretty cheap nowadays.