Seems pretty straightforward, if not simple:
DKSK = Balkand
RLBS+SUMS = Ayodhyakand
Shurpanakha = Aranyakand
Sugriv+Vali = Kishkindhakand
Hanuman + Sita = Sunderkand
Ravan + Indrajit = Yudhyakand
Kush + Luv = Uttarkand
Comes up to a total of 17 people who need to be fitted in this banner. Just pick the appropriate scenes & work from there?