otr microwave & professional range -- Advice

We finally upgraded our range to a professional one -- a 30" precision capital. And, now, we're trying to decide if it's at all possible to get an otr microwave or if it absolutely must have a hood. I realize that it's not ideal, but...In order to get a hood, we'll need to replace a cabinet. It addition to that not being ideal, our kitchen is also quite small, so there really isn't another good option for the microwave. We know that we'd need to replace our current 220 cfm model, but if we upgraded to one with 400 cfm or more, would that be at all successful? Again, I know it's not ideal, but is it at all doable? Has anyone done this? Any advice would be greatly appreciated. Thanks!!