1 year deal at most.
To be honest, I'd prefer that bench hooker to be a player who can also fill in the back role. Havili would have been perfect - brings a point of difference to hooker with his running game, size and strength, then once McInness comes back in (10-15 mins into second half) he drops back and plays as a running forward giving JDB a rest. Only use 3 interchanges to rotate these players.
I can't see Lichaa not looking for a starting role somewhere though. And Cam Mac is a better player.