Do the championship play offs work in the same way as the SL playoffs?

yep, so unfortunately for Toulouse they now have to travel to Toronto, if they lose they have a game in Toulouse and if they win that they have to go to Toronto again.......

York will be more concerned about turning over the winners of Leigh & Fev 2morro.

Except the Grand Final is not on a neutral ground - it's being played in Toronto. (if they qualify, obviously!)

It should be played at the no 1 ranked club's home ground.
The problem here is that its an 8 hour flight to get there, although that didn't help Toronto last season