Can I join the club?
Same here, The only barbs and fittings I can buy is that garden hoses stuff...For other kinds one must go to the machine shop or order the goods from the net...talk about time/money consuption...
For my first block I used air compressor fittings which are initially 6 mm ID, and I managed to re-drill them to the 7 mm ID... and that's all...
I'm kinda happy, cos' I thought that shi##y situation is concentrated around here where I live...but actually, there's nothing to be happy about...:shrug: