1. Sample 14-8: Verse Play applies to this situation. Formats 14.6 says the first line of poetic dialog is 1-5 with additional lines by the same speaker in 3-5.
2. See Formats 15.5. In poetry (and plays in verse) only the line numbers shown in print (in this case every 5 lines) are shown in braille. ALL the poetic lines observe the required right margin.
However, the note section at the end of the print page uses the entire braille line and does not observe that right margin. See Formats 16.4.1g.
ALL the numbered lines observe the right margin whether a specific line actually shows a number. The notes do not.