Need pics

Don't have a picture yet, still clearing walls, but looking at 30" cabinet on both sides, raised overhang on the back side, and a glass range hood, 6" larger than the gas range.

So, for the island installation, I'd look at the size of the capture area, rather than the canopy.

I wouldn't unless you have lots of room on either side and lots of room behind the range. You will need a minimum of two feet on either side of the range for safety and that is bare minimum Against a wall minimum on one side of a range is 15" but on an island for safety you need more

I would suggest you post your kitchen layout in the kitchen forum and let the folks there help you find a better place for your range.

I hope your favorite pastime is cleaning glass.

Please let us know which glass hood you are considering; most do not capture well. There is a reason why "pro" residential hoods vaguely resemble commercial hoods --- because commercial hoods efficiently capture and contain cooking plume effluent.

A slide-in induction range presents a cleaner profile on an island. And it's many times easier to keep clean. Here's an example. You may be able to use a downdraft vent with it like this one from Best.

I just re-did and expanded my kitchen by taking out a wall to the little-used den next door. My range is in my island (an LG induction slide-in) due to my renovation limitations, and I have a Kobe hood above it. I haven't had it for long, but so far, so good. I cook frequently, but not elaborately. I don't have children or frequent guests, so I was not too worried about people around the stove top. While my island is built to have seating for 2, right now I don't have any stools and currently don't use it for that. It's a prep and counter-top area, not really an eating area. Here's photos of my before and after: http://ths.gardenweb.com/discussions/4751866/my-reveal#20471267

That looks great! Thank you.