I have not read every post in this thread, but have you identified the areas of your present system that you feel need improvement?
Kindly allow me to share a recent, and very fortuitous learning experience. After many years of "going it alone" in my pursuit of better and more satisfying audio, with varying degrees of success and failure, and a not inconsiderable amount of wasted time and money, I found a wonderful audio dealer who is low-key, extremely knowledgable, sensitive to my preferences and needs, and who carries an assortment of fine components at various price levels. So far, based almost completely on his advice, I have purchased two major components from him, and each one has exceeded my expectations.
My point is, that on this and any other audio forum you will get endless suggestions from all sorts of people. Some suggestions may be accurate, some may be useful, some may be off the mark, some may be off-the-wall and hilarious. And some may be beyond worthless. (including mine of course). :)
And finally, I think that throwing $10K at power "issues," real or imagined, is a sure recipe for a morning- after headache of cosmic proportions, along with what might prove to be a terminal case of buyer’s remorse. YIKES!
Good luck to you.