I love the look of this style. The name is self explanatory ;) if you know French.........
UC, numerals and some symbols have one line thicker than the others, LC only has the thinner lines. LC can be used on its own if even thickness of lines is desired but it is 3 px shorter than UC which will show clearly when using Basic Latin LC in combination with Hebrew, numerals, some symbols and some punctuation marks. Cyrillic and Hebrew added. Latin1 will come eventually ;)
Apparently, it is quite easy to forget what gets a fontstruction going. Something about ultra condensed bla bla bla. The rest is just a matter of having a creative activity to occupy the mind. And if in the process you can help out a friend, all the better.