Manual swap W201 - clutch line details?

[Rocambolesque]

I'm doing a manual swap in my W201. I got almost all the parts and I am getting ready to drop the auto trans next weekend. I figured it would be a good idea to fabricate a clutch line before putting the manual transmission in it, because there won't be much space after it is installed.

I see that the slave and master cylinders use an inverted flare. The thread seems to be M12x1, but I don't have a pitch gauge so I cannot confirm. Does someone know/remember the thread on the cylinders?

I bent a 3/16 brake line on the transmission:

Does someone know if the OEM line is 3/16 or 1/4? Does it matter? (I guess not...)