I'd get spare props and glow plugs, and maybe a few spare screws and misc hardware, but not airframe parts. The World Models ARFs, and most others, are made mostly from very thin lite plywood. It makes a strong light airframe, but it is not durable if you crash. Since you'll have an instructor that should not happen but you never know.

Many planes meet their demise soon after the student solos and is testing new things and stretching his limits.

After you've learned to fly, if the plane is a little banged up, you might think about a few parts to pretty it up.