One way sure way to find out if this idea has lasting merit it to run it by us. You will not get a more thorough, honest evaluation than the users and DIYers on HF.
Look at what Hangnout and Medicine Man have done with the latest hammock sock idea. It's pretty clear that the hammock community can support several vendors. Like Jerry said, many folks can't/aren't willing to make their own. For the DIYers in the bunch like myself, I copy, but I'm not interested in creating a business for myself. I have the utmost respect for the innovators in our midst who constantly think outside the box.
Let's see what you have come up with.