One thing you might consider. Go to a second hand store (or stores). You'll
never know what you'll find.

'Bout ten years, or so, ago, went to a big thrift store in Vallejo. Found a
Sony 7600-D (AM/FM/SW/LW). They wanted $10 as-is. I put in the correct
batteries, and in store got both AM and FM. Outside, got WWV, BBC, RNZI, and
a few others. It's been my knock about ever since (rides in my trunk). Has
a tunable BFO as well. Only drawback, it tunes in 5 khz jumps on SW/LW. But
the BFO tuning knob also works in AM mode and you can tune in between. Just
don't *really* know the freq.

BTW, it was Sony's first digital readout SW set.

Just a thought......

Eric