Firstly, I suppose upon rereading that my phrasing was a bit vague, so I understand the confusion, but I am not selling anything. The story will be available for free. The set instructions will be available for free. The campaign is to fund Bricklink orders and paint--and obviously no one has to contribute, it would just be helpful and appreciated in the face of what is frankly a huge project. I could easily have just shared this with my little siblings and nobody else, but I thought I'd give a wider audience the option to see what I had in mind for a proper ending.
As for LEGO themselves, this is admittedly in their hands, which informed some of the phrasing on the actual contribution page. But I made sure to immediately post this project to the official pages for both Bionicle and LEGO as a whole, and I haven't heard anything from them yet, so unless that changes I figure they're fine with it.
Finally, I do intend to update the page regularly with content, and in fact I posted the first such update less than an hour ago. There isn't much physical to show yet, as the project is still in its infancy and much of it is still either in my head or in the phase where the prototypes are still half-built, full of parts substitutions, and overall kind of junky-looking. I'm working on getting them out of that territory, and they're slowly but surely getting there.