@styxtrekr (I've been away from this thread...) You asked: "What cables and interconnects did you settle on"?
I am using Homegrown Audio "Silver Lace" RCA interconnects which are silver wire Litz configuration cables. They are very delicate but I am happy with the sound. For balanced interconnects, I'm using Silnote "Morpheus Reference" XLR cables. For speakers, after listening to multiple cables, I am very happy and stayed with my AntiCables.
I am happy with these choices and do not think I can appreciably get an improvement in my current listening spaces. If I went wild and made substantial improvements in the physical spaces my systems are in, then I think I would consider further cable tweets — but for now I am probably wise to avoid chasing shadows in a shadow-rich listening space.
