Only one I can see is Kolodjashnij who plays a bit taller than Kemp. Has been their most consistent defender this year but they might look to phase him out. 29yo and very durable.
Would prefer to look away from Geelong if we were after this type of senior player.
Plenty of sides you could pick apart player wise
I'd have a crack at Ben Miller and you could move on 2 of Durdin, Young, Marchbank