Hi, if the timer doesn't work then nor will the ovens. I have just bought 2 110's to make one good one, paid £150 for one and £100 for the other.
The timer and oven ignitor transformer were duff on one and the frame was bent and the plate warmer broken on the other,But it had the right colour doors!!
If the timer is gone you really need another, around £75 from various places on the net, ebay and google will help!
Not too hard to fix, no doubt somebody will say gas fitter this and that well thats rubbish, there are no gas bits that need touching to change the timer other than lifting the hobs which doesn't involve disconnecting any gas bits.
if you need any more info let me know
Nat, December 2009