Personally. I would stick with the Rhea for a while, at least until the VPI and Van den Hul have broken-in and you have a good feel for the sonics. You may be surprised at how much you enjoy the sound with your new TT and cartridge with the Rhea Signature and NOS tubes. That is a mighty fine phono stage set up! I wouldn't be too hasty to find something else that ultimately may prove to be just a sideways move. One of the "traps" of being an audiophile is looking too far ahead at your next purchase/upgrade without fully appreciating what you already have.
Phono preamp suggestions; can I improve upon my Aesthetix Rhea Sig ?
I have just ordered a new VPI HW-40 with a Van Den Hut Crimson Stradivarius cart. I'm now wondering if I need to upgrade my Rhea phono pre? Have already made improvements with NOS tubes. Have looked at the Pass XP-27. Also I see the Coincident Speaker Technology Statement was just awarded product of the year award from AS. Any thoughts?