Finke Desert Race

Can any one confirm a few details about the Finke race.
1 - where exactly is the gate that blocks the main rd where the race track crosses , From memory it is Just before the short cut track to Maryvale .Am I right?
2 - After passing through the gate is the Race track then on the right hand side if heading north ?

3 - What is the latest time we can head down the track to Finke on Sunday morning before the road is blocked off.

4 - Can you get through to the finke race track from the Hugh River stock route at any time if the track is on the right hand side of the road as I beleive it is ?

If any one who has knowledge of the track & back roads in can answer these questions it would be much appreciated.

Cheers