Good luck with your work.
And I hope that you're able to maintain the enthusiasm, as you seem to be in for a long haul. Note that I be on that long list of people that was going to write the next big epic, but after a few chapters I got distracted, got bogged down in a word or two, then never quite found the time...the fire may be out but there's still a pilot light in there somewhere (if you understand what that is).
So do what you can, try to finish even a small bite or two, and make time for it each day/week and stick to it.
And let the Tolkien stuff go, as stated above. Make your own languages, characters, places, etc, and let the next generation face your team of lawyers...
