Originally Posted by kneal
...will be replacing the Vent Hood as it no longer works and basically takes up an entire cabinet...
It appears you wish to retain the functionality of a Vent Hood. If that is the case, a new replacement will take up basically the same amount of space as the existing hood.
If one can be found.
Since your existing Vent Hood fits the existing space so well, I recommend you repair & reuse it. If it is like mine, the toughest part of the task will be cleaning the old grime off of it.