Thank you @audiotroy
I am aware of the 432evo options and the interesting and thoughtful design features their servers bring to the table.
I have moved from a highly modified Mac mini, to the then flagship Antipodes DX (still own), to Mojo's Deja Vu server, with each step bringing improved musicality. If I make a change, I want to continue that trend toward improved, natural-sounding musicality, with reliability, ease of operation and interfacing, and accessible software support for upgrades also being very important to me.
I remain curious as to what some of these more expensive options offer over and above the sonicTransporter i9 as a Roon core. I will call your store next week for a private discussion.