While I'm "wandering in the wrong yard" (ole 'Mainer saying) , I offer the following :
K/A catches kick @ R/B's 3 = ball's dead B's ball there.
A muffs kick @ B's 3 and juggles ball into B's end zone = B's choice of first touching @ 3 or TB.
B catches kick @ B's and mo' takes him into end zone = B's call at B's 3
B muffs kick @ B's 3, kick continues into B's end zone and B recovers = TB, as kick hadn't ended
B muffs kick @ B's 3, kick continues into B's end zone where K RECOVERS.....er....I'll let you guys answer that

"Ayuh, if hay is ta' fall off the wagon, spect' it'll be on kicking plays "

(another ole' Mainer saying)