It will take a lot of time to polish this Asset, but at the same time it is very cool, and innovative. So I'm thinking, publishing free version for people who want to start experimenting with it. And later, making payed asset: a wide range of shaders for those, who want to use technology in their project.
In my mind I never have any problems with buying something I can make myself, if it will save me some time. And I think most people who can afford buying assets have similar mindset: even though you can make a shader you need by changing example that comes with free version, priced asset will bring more options and automation.