g.l.amour:

Sorry about the misfortune with brass
Today I managed to get to the hydraulics shop I was talking about, and guess what - they DONT have the barbs. Luckily, they have the lathe, and I'm getting my barbs done and picking them up on monday

, for about 2 Euro a piece. Ordered four 10 mm ID and four 12 mm ID, so I can experiment a little.
Waiting...