masteries (./9) :
Woo! DB19 connectors... dream ones,

Yes indeed, I bought a NOS from a local electronic supplier few years ago which had plenty of DA19 and DB23 connectors (male, female and enclosure) bought from a competitor's closure. It was a good find at the time, and now a bit less since DB23 are readily available again.

masteries (./9) :
Personally I prefer to sell entire working and tested units;
if you desire, due to (I suppose) you are in France, you can send a standard letter with the DA19 connector (I am in Spain, standard letter cost will be reduced); and I place it in your unit.

Thanks for your offer but I rather solder everything myself but I understand your concern to test everything before shipping so no problem. I can manage without one for now.