Oh yes there are panzer parts
.
Thanks to RPF forum there is almost complete "kit part map" for this backplate (and another parts of Y-wing). I used this map and kit plate photos to model this parts as closely as possible from 2d reference. It taked decade and more to identify most, if not all, model parts that were used on Y-wing. For people with lots of free time it could be fun to identify them
. I am very thankfull for their achievement, becouse I could not justify time spend on this task. Well sometimes I can not justify my time spend on paper models, but this is another story that should also be told