I have the 6 by 4 table booked to demo this at the Partizan wargames show on the 22nd May.
James from Oshiro Models is making me a couple of Spanish buildings. See the plans below.
The block house that I had made up for this project has been sent to the casters and all going well... will be available for sale through Studio Miniatures at some point.
All I have left to do is base 100 figures and paint 15 more:)