Is the Wright a 2A3 amp?
I am also a low-power guy. I really love the low powered tube stuff. Nothing sounds quite like it.
I'm sure you are enjoying some great sound.
For IC's and speaker cables, I use Harvey Rosenberg's(aka the late Dr. Gizmo) design. For speakers, 20 ga silver single conductor in teflon tubing, bare wire connections.
For IC's the same thing except 30 ga silver in teflon tubing, with your choice of RCA plugs. No twist or shielding. According to the late Dr. Gizmo, they outperformed all his hyper-expensive wires on the SET gear.