Ok, two things:
1) I saw that you can add optional donations for projects, so failed/rejected projects can go up for free with an option to donate if the person feels like making it rain on me (and not in the golden shower way).
2) Modified the idea to be smaller and more achievable I think -
Space factory - you get raw materials in via some kind of asteroid miners, and you have to produce the right products per-level for export - alittle similar to the Zachtronics games' but I think it different enough.