Exactly the same as the one before, only my cooker packed up on Christmas ?

My 100DF range cooker packed up on Christmas Day when I had a house full of 10 guests including a bably and two elderly grumpies !
Also my right hand cooker and ignition and timer all not okay and it is less than three years old.
Also I've got a New Year's eve party for 150 people with only half a cooker. Can anyone give any advice ? I don't really want to purchase a new one at this time of year as we're broke ! :(