To thight when rebuy?

[stokken]

55 r stars

halfway into rebuy. All involved in pot 4,5 K stacks

Mp limps, I limp 44 , one limper behind, Button raises to 700 (t100)
Mp push. Now both mp and button have pushed with AK-J hands, and pp down to 33.
easy call really with potential of a 4 way pot with masses of chips??