Here's a thought... if you go cut some willow whips (on an angle) and stick them in the ground around the blind, most of them will take and start to grow and you'll have some natural camo that you will just need to trim! I had an island blind like that back in Ontario, all you had to do was give it a hedge trimming each fall!

You might also think about some boards in the bottom and a sump since you know it's going to get wet, might as well go all the way!

ian