As an update to this, I've done more research and decided to buy a HDfury Vertex²

It looks ideal for my needs and seems to be a common solution to the challenges I've got and they seem to be very good at supporting clients

Home Cinema: Panasonic DMPBDT700, G68, Jeff Rowland MC6, Adept Response AR8, 803 Diamond, HTM3s, ASW855x2, CCM816x2, Pioneer 506XDE, Nordost / Au24 cables
Stereo: 808i.2, Audio Research Ref 3, Canary Audio 303s monos (modified), Adept Response AR8, Living Voice OBX-RW, Valhalla cabling