Large Gas Hob, non standard size ?

[Mister-big]

Hi we have an old Moffat Gas hob which needs replacing. Its a large four burner unit with cut out sizes of 700 x 450mm approx

We would like to fit a new hob and keep the existing worktop yet cannot find any hobs this size, they seem to be wider, can you help ??

 

[JonB]

Surely if the new ones are wider ,you could enlarge the hole.
JonB

 

[Mister-big]

Yes we could make the hole wider but its a 600mm worktop and would leave very little worktop left and make the hob too close to the wall and front of the worktop.

Any other ideas ??