I am one of the professionals. I have owned the 800. It is a fine headphone, but for the stated desires of the OP, it doesn't make sense to recommend it. It totally blows his budget, and won't run well from his source.
For my own needs and preferences, I sold my HD800 and went back to the 600s. They are more neutral and better for both my work, and the way I like to listen to music for pleasure.
The posts here have largely been the equivalent of the OP asking about the best sports car for under $75k, then everyone telling him to just wait until he has a budget above $250k for a car that is good, but not 2.5 times better than the option he can afford. Not helpful.
Hence my response. No delusion. My recommendation based on his request, and my experience with the headphones in question.