I used a clamp to hold it on the top part. It was actually hard to get the curve, but bending the 1mm strene a few times it took the shape.
Once the glue had cured, it was ready for the next stage. However, it was still very hard to finish off the side skin with the styrene. When I glued it wasn't right. I felt that a top part was required now for the sides to take the proper shape. So that's what I was going to do so that the other side at least would be easier to do and also wouldn't have to be fixed up.
This is a view of the back with the back and side skins on. The curve of the side skin doesn't look quite right to me.
|From the side view. I am not liking the crease the skin has. I hope I can get it out with a bit of bog and sanding...|
With the top panel on, I could star gluing the other side skin. It seemed to glue one much easier than the other side and tape the shape a lot better.