The terrain will also be straightforward and will just need to be scaled down to 2' or 3' long sections with a structure made out of light weight materials. I could even keep them to the original height to add to the effect. It's worth some thought and I reckon I could produce it myself without too much trouble.
For rules I could just go with Bag the Hun, assuming I add hexes to the water surface. Alternatively, I could devise my own set based on the ideas I've already worked out. If I can get it down to two sides of A4, so much the better.