Two basic choices:
1) Low cost, high effort, reduced features. The cheap counter displays have only one offset, and won't compensate for USB and LSB, can't be used with the original display and require more effort to install. Doesn't function as a clock, either.
But they're cheap.
2) High cost and low effort. Nobody sells a 'drop-in' replacement counter that plugs into the original display. The original-type clock/counter module is easiest to install, has the SSB offsets, and costs more.
Haven't found a third alternative.
73
That really says it all right there.