The following bargains were found at thrift stores or garage sales:
Marantz 2235B receiver, $10
Pioneer SA-1000 integrated amplifier, $10
Soundcraftsmen 2640TX speaker, $6
Technics SL-1200M3D turntable, $12
Pioneer HPM-100 speakers (near mint pair), $125
TARA Labs Space and Time speaker cables (two 8-feet pairs), $8
I have other cheap finds, but these stand out.