Firstly a very warm welcome to the Scale Models forum Getter and thanks for sharing a couple of pictures with us for your first posting. Very nice models both the card and the carving and I hope that someone here can point you in the right direction for a bit of detail.
I look forward to seeing shots of the completed models and seeing pictures of others.
Here are a couple of interesting links I found which you may already know of however I didn't come across any cockpit detail:
http://www.internetmodeler.com/2001/...ria/Roland.htm http://www.wwi-models.org/IM/German/laskodi_roland.html http://modelingmadness.com/reviews/w1/cleaverroland.htm