I love this system, the speakers are the best in the world IMO. Nice choice. I noticed you said your amp is your weakspot..Might I suggest tubes? I heard AR (not necessarily my first choice) on Parsifals and it is something I will never forget. Every piece of your system is just perfect, congrats.
One thing I notice is you have the driver/port facing the wall. How does this work in your application? Good I take it? I ask because I am considering Devore super 8s and the port in the back will be about 1.5 feet off my wall. I have always had front ports which have proven easy to place, so a rear port concerns me. How well does it work for you?