How would you guys block off/baby proof this kitchen?

So, I am buying this house. The only problem is that the oven controls are pretty low. My 4 y/o won't mess with them, but my autistic 2 year old will, and I have a 10 month old who will be walking soon. I know I can put a baby gate in the back archway, but I have no idea how to block the entryway between the cabinets. I have yet to find any baby gates that you can bolt from the sides and on one side, the cabinets come out a little further than the other side. The closing date is about 3 weeks away, so I have some time to figure out what to do. Has anyone else had to block off an area between two cabinets?