I'm slowly getting it figured out, thanks to this thread on another site
http://www.fiero.nl/forum/Forum2/HTML/107264.htmlThere's a little bit of back and forth, but the basics are these:
From the distribution block to the brakes are EUROPEAN BUBBLE FLARE. This is important because the fittings will be correct.
The fronts and back (from the back distribution block) are 3/16 (4.7mm) European bubble flare
The big line from the front distribution block to the back distribution block is 1/4 (6mm) European bubble flare.
If you buy the sections from AutoZone, make sure to read the tag carefully like this:
PAE-xxx. (E=European, last two "xx"=length)
These are made from the new stuff that doesn't rust and is easy to form.
The master uses American fittings and are different.
I'll update with lengths as soon as I find out.