Desktop Environment Development

We're looking to find someone who is exceptionally well versed in graphical programming who could develop an entirely build from scratch desktop environment (ex: KDE, Gnome, etc.). The design and behavior of the user interface is a mix of common UX procedures and rather non-conventional and fairly experimental elements. Design work for the mockups are nearly complete and we're looking for someone to begin development while the design work gets finished. This will need to be developed to function exclusively with FreeBSD possibly using QT elements and in the end, be licensed proprietary closed source due to its non-conventional nature. As a secondary objective, we will need WINE to be embedded into the system to allow Windows based software to run natively. Ideally, we'd be looking for someone who'd be willing to commit to repeated future efforts when updates/fixes are needed and also be willing to actively participate and coordinate with the design team for optimal results. Due to the nature of this project, we'd ask for any individuals interested in helping to sign an NDA to avoid any sort of loss of concept. After said legalities are agreed upon, we would then allow viewing of the mockups. The design itself is similar to that of macOS with unique elements. As of right now, we are looking for quotes and offers.