Your hood size will depend on the size of your range, specifically the BTUH. If you go with a large commercial gas range like that, the hood will be intense to the point where it may require make-up air for combustion. Depending on the hood, that can be handled integral, but will require more mechanical work and that hood can easily cost as much or far exceed the cost of your range.
I've built over a dozen commercial kitchens. You could exceed $40,000 just dealing with the range and its ventilation requirements. Hell, that's commercial looking stuff, nothing fancy. Look at your budget. Now, does that seem realistic or even worthy of contemplation or mention? Probably not.
Buy a nice, normal residential range and range hood and be happy. Hell, if you want to make it even cooler, incorporate ADA switching of the range hood. It won't cost you $50 and will be a cool feature.