Hi Peter,
That sounds like a great project! I am not sure but somewhere in the nineties Dutch soldiers found a large piece of fuselage of DFS 230 in the former Yugoslavia. There plan was to bring it to the Netherlands but I don't know if that ever happened. Perhaps you can also ask you question at the
www.luftarchiv.de forum.
Regards,
Mathieu.
www.fokker-g1.nl