I have a Hammarlund HQ-140-X and it is a great receiver. If frequency stability on SSB & CW is a concern for you, then the HQ-129, HQ-140 are the ones to buy. Newer models in the Hammarlund lineup are drifty. Other nice things about these are that they are easy to service, well built, good dial accuracy, and generally do not need to be recapped except for the power supply filter capacitor because there are no paper nor wax capacitors. Also no special capacitors inside of the IF transformers so no worry about the so-called silver mica disease.
The one which I have here is very sensitive and keeps up easily with my more modern receivers.
The only problem these days with these big, old heavy receivers if you buy online is shipping cost. Shipping prices have gone way out of reason for bigger items.....