I've been heading in this direction myself. I was drawn to the fact your using DH Lab cables.
I was looking for a reasonably priced USB cable from Streamer to DAC and ended up with DH Lab's Mirage. I wasn't expecting much difference to what I had, but against my expectations, it was noticeably different.
I then wanted to try more DH Labs so went for the Air CryobMatrix RCA ICs, and also the Reunion Ethernet.
All very nice and a reasonable price. I am going to try the speaker cables next.
I've never made a conscious effort to go full loom, but I guess if you like what a particular brand's cables do for your system/enjoyment, makes a kind of sense to keep going.
My PCs are a mush mash of Triode Wire, NRG Custom Cables and Furutech; not sure I'll go that far, but I'll will going full DH Labs for signal cables