Since you already have the info and the hardware, why don't you get the authoring software? The aforementioned Scenarist is one source,
Indigo UHD is another. There are authoring programs listed all over Google, and they're pretty much alike. You'll have to set up with a provider to get the stuff.
Your 4K consumer video might be UHD compatible, or it might not. Just because it says 4K doesn't mean it meets the specs. Some basic specs:
http://www.projectorreviews.com/home...-now-complete/. There are several authoring apps advertised everywhere, two of which were already mentioned. What's holding you back?