Avro,
Being somewhat tight-fisted
I've taken to keeping a lot from any broken-down set:
wound components (RF, IF coils, output tx, mains tx)
speaker,
valves (+sockets if bolted on)
tuning + trimmer caps;
smoothing cap
hardware (including tuning scales, cord, springs, knobs, etc.)
sockets/plugs (wander, etc.)
The downside of this rather Scoogelike behaviour is that I have a growing space problem!
But I must admit that, unless the cabinet is dripping woodworm, or there's some other overriding defect, I tend to keep the set for 'when I get round to it'.
Perhaps I should have more quickly said: throw out cabinet, chassis, standard Rs and C's!!
dave