Here are a couple of words I was unsure about, and the calls I made. Please evaluate this.
prōposuit: “ui” here is not a dipthong. This word has four syllables, right?
nōbīs: “o” and “i” are long by nature as marked?
And here is my scan of the line.
ūtile/ prōposu/it nō/bīs ex/emplar U/lixen,
- u u/ - u u/- - / - -/ - u u/ - u