I like the notion of incorporating lesser-used figures. I like both the chain the line - to progress the lady early and setup for a satisfying reunion later - and the Dublin Bay.
I am troubled by two things here though. First the courtesy turn duration will vary depending on which side of the set you are on (1/4 or 1+1/4 for the overachiever on one side, 3/4 for the other couple).
Second is the transition you mentioned to B2.
How to get rid of chain to line of 4?
The Dublin Bay to P b&sw "might" be smoothed by the following: on the return, after 4 steps forward, do not turn and backup. Instead, do a funky whatever-we're-calling-a-gypsy just 1/2. I.e. all drop hands. Insides walk around outside person 1/2 way to face P in next 4-some. Outsides kind mad robin around the inside person 1/2 way to face P.
Meh.