RE: Name the plane - such a nice game...!
That one here could be a Robbe Mäxi. Maybe the very first plane in the foreground on your 1st picture is also a Mäxi.
That plane was available as a fully wood built up construction (could be the one in the foreground) and it was available with GFRP fuse (could be the one I marked red)
I will try to scan old catalog pics and post it.
Always loved this Mäxi plane - never got a kit - still looking for one!