I agree with @jond, if at all a possibility try to listen to them prior to purchase (I know, easier said than done, especially the Robert Koda). Given your additional comments I feel even more sure the Koda Takumi is your better choice.
Thomas Mayer products are custom order projects and heirloom quality (With cost commensurate). He can extract great sound from any tube and certainly from a DHT tube. My line stage uses a DHT (101D) and it sounds exquisite.
Given your described tastes and music preferences the Robert Kodak Takumi 10 and the Thomas Mayer choices would leave you ecstatic with musical joy! I am not dismissive of the Soulution but in my opinion it moves in different sonic direction entirely. Best wishes in your endeavor.
Charles