Just a suggestion. It may have been mentione previously on another forum, but it is worth searching the discount bin at walmart. Every now and then they drop the price of their Ripstop nylon, DWR nylon )water resistant) and Silnylon (waterproof) fabric. If you're not in a rush, it might be worth a hunt.
Without a doubt, the hardest thing of all in a survival situation is to cook without the benefit of seasonings and flavourings. - Ray Mears