Using emirates skywards miles for half a trip?

[ben170292]

Wasn't sure where to put this...

 

Hi, I am planning to go to Phuket next year and have realized after my flight MEL-DXB-HYD-DXB-MEL I will have enough points to fly MEL-SIN or MEL-KUL return In economy, my plan is to fly to either then get a flight from there to Phuket. Just wondering what happens when I get to the airport, like because it's not one booking will I have to grab my luggage then go through customs and re-enter for my next flight? If yes because it's leaving then re-entering will I need a visa for the stop over country?. Also if I go ahead with it and one of my flights is late so I miss my next flight will the airlines charge me to go on the next available flight?. And last question if the emirates flight is full because I used miles and didn't pay will they just say I can't go or would they put me on the next flight?

 

Thanks