Source of SM Latching Relays
 

Anyone know a good source of surface mount latching relays DPST or DPDT, 5V
to be driven by logic?
I want to build an automatic antenna tuner for HF QRP
Digikey has them but they areUS$12 ea and it is a bit too expensive if I
want about 20 of them
I would prefer a permanent source if possible - not only a temporary
surplus - although this would be better than nothing

Thanks in advance

Richard