Have you found a stove that has the features you need? If reaching into the cab above the mw is an issue, why not just store those items elsewhere? I think there are child-proof clips for ovens and drawers. As to your question, I'd find a new white stove instead of replacing everything at this point.

Good plan. Also make sure your stove is secured to the rear wall. There are safety issues with kids opening the oven and standing on the door causing it to tip forward.

I see the problem as more the microwave then the range - although a toddler reaching the knobs is a difficulty - but it will pass soon, and I like suzyq's suggestion. No matter what kind of range you have, it can be dangerous to reach up over cooking food to the microwave - especially if you are short as I am.

I would replace the microwave with a vent hood - which will look and work better and buy a small countertop microwave. A standard white hood and small microwave will not cost much compared to all new appliances.

I changed out to a wood hood in my kitchen, but that is a more expensive fix, though less expensive then replacing all the appliances. I bought an unfinished wood hood which came with a liner and purchased the appropriate vent insert. I did some DIY and paid for the install (total cost of hood and labor close to $1000). Mid-tone wood cabinets look fine with white appliance - my appliances are white too. I am also in the midwest:)

https://www.houzz.com/photos/my-pics-work-in-progress-phvw-vp~109854029

Black to match the fridge.

I would just move the microwave and replace it with a real hood. Btw, appliances are not investments, they are expenditures. You buy them to use them, not to help with the sale of your home. That's a realtor's job. :)

Agree with zmith - sometimes special or high-end appliances will be a selling point, but yours are relatively new and you're probably going to replace with something similar so it shouldn't make much difference one way or another.