Cooker Hood to fit in a Chimney
 

I am really in need of a little help and advice !
I am looking for a Cooker Hood that will fit into a Chimney Breast.
I've just moved into the house, the Chimney used to have an old floor standing boiler ( which has now been removed ) but to utilise the space of the chimney I have ordered a 90cm Rangecooker, I need something reasonably slim and preferably 90cm wide to match the cooker, but it cant be too deep and it needs to fit up into the Chimney.
Any ideas ?