THe switches you seek are no longer made and there is no replacement for either of them. I had mine bypassed when Bob restored mine last year. He is thinking about having a few more made, but holding your breath waiting for them is not advised.
Welcome to the club!
The Gear... Carver "Statement" Mono-blocks, Polk Audio "Signature" Reference Series 1.2TL with complete mods, Pass Labs X1 two channel preamplifier Signed by Poppa himself, Pioneer PDD 9MkII SACD Player, Yamaha PX-3 Turntable, with Dynaudio 20x2, SimAudio Moon LP3 phono preamplifier, Pioneer Elite SC-65, Polk audio AB700/800 "in-wall" surrounds, Oppo BDP-93