I've always wanted a Playmobil motte and bailey, but never bothered to try making one, as I couldn't think of a satisfactory way to create one. Considering what you have to work with, I think you're on the right track and some of your ideas look good. Please continue to update us on how it's coming and your newest ideas.
I hope that for the next generation of the Knight theme, Playmobil will create a Norman theme, perhaps with both a motte and bailey and a Norman keep. This would be a nice change from what they usually do with the Knight theme.
