Hi we are trying to finalise our kitchen plans so that we can complete an order. We are going for an induction hob and looking for an extractor fan to fit into a cupboard measuring h 360x d 300 x w 800. DIY kitchens are suggesting a telescopic fan. We'd like to go for a good make, siemens, bosch, miele etc but ask of those are saying 320 cabinet? any suggestions please?!