I have the following, can anyone indicate rough secondhand values?
All are in A1 condition and I have owned them from new.

Quad 44 PreAmp
Quad 405 MK1 Power Amplifier
Quad FM4 Tuner

All boxed with manuals original receipts.

Also,

Linn Helix Speakers
Linn Axis Turntable Basik/K9 Cartridge

Mission DAD5 CD Player
Mission DAC5