I dug around on ebay and found a lady that will custom make a suit for around 80 bucks. I had her make one for my daughters, since they are wanting to go every trip now. The quality seems good. It was a zipper top, pull over pants and a bandit style mask. These would definitely be an over garment. Just thought I would pass along...
Her ebay store is Under Cover camo by Linda32
Her email is [email protected]