Although XJ600n gauges don't come up very often on UK ebay ( and when they do they get snapped up quickly ) we over this side of the pond, have had alot of "naked" bikes over the years, and gauges from different models are readily available on UK ebay, and they are usually cheap
( I don't know if these sellers will ship to the US or how much it would cost, but it must be worth asking 
)Also in the UK we use MPH not like the rest of europe that use KPH, so they will be OK for the US
One last thing that is VERY important, when searching UK ebay DON'T seach Gauges, DO search "CLOCKS" :kudos: ( example: search "yamaha clocks" or "suzuki clocks" )....... Don't just search "clocks" or "motorcycle clocks" , or you WILL get Time pieces !!!!!
Very confusing I know
