• Smeg 809747 2-Piece Kitchen Package With PGFU30X 30" Gas Cooktop and SU45VCX1 24" Electric Single Wall Oven ($3K) - you'd have to make sure you could install the oven under the cooktop
• Ilve UPN60DMPIX Nostalgie Series 24 Inch Freestanding Dual Fuel Range

You may want to watch this CR video regarding steam ovens.

I think either of these would be a turn-off for anybody considering buying your house in the future. Most people would want a standard 30" range.

-- amateur

Thanks for those links -- both are interesting options. The resale thing I 100% realize, but it's also not a big consideration for a couple reasons: 1) likely staying-put for the long haul; 2) would be perfectly willing to give any potential buyer an allowance for replacing the unit with whatever they want. Also, my intention is to build the cabinetry for the combo in such a way that it would be easily replaceable and wouldn't need a lot of re-working to install an alternative.

Thanks again! :-)

Follow Up:

I'd buy a 30" conventional gas or dual-fuel range and use its cooktop. I'd install an over-the-range microwave/convection oven such as the LG Studio LSMC3086SS Convection Over-the-Range Microwave Oven and use its convection feature in lieu of the range's oven and the OTR oven's microwave capability. Of course, since "mostly what we are doing is heating-up small dishes" then using the microwave really makes the most sense.

Unless you have a tiny house, I don't see a reason for your 24" plan.

The over-range idea is a good one except that we definitely need a range hood and already have a nice one installed. Plus, I find that for what we want I don't think an over-range would work -- too high up to use effectively. We definitely do not use and don't want a microwave, and part of what we want to accomplish is no additional appliances taking-up any space at all. The house is indeed very very small -- just under 1000 sq feet of upper level living space. The kitchen is a bit awkward in addition to being small. This is why all the fuss over this particular problem -- it's been a major challenge getting it dialed-in.

Do you really need a steam/convection oven? If not, maybe consider just getting a 30" range with a double oven, and you can get the same small capacity cooking out of the smaller oven and not install something in your kitchen that no one else would ever want. If your cooking is simple and mostly reheating, this should be fine for your needs. Yes, you'll get an extra oven out of the arrangement, but it would be a much better buy. For example:

https://www.homedepot.com/p/GE-30-in-6-7-cu-ft-Slide-In-Double-Oven-Gas-Range-with-Steam-Cleaning-Oven-in-Stainless-Steel-JGSS86SPSS/313247002

ETA: there are a lot of different oven arrangements that can give you an even smaller oven than the one I linked above - similar in size to the 2 CF wall oven you're looking at.

"The house is indeed very very small -- just under 1000 sq feet of upper level living space."

That's not very very small.

There was a lady on one of the cooking pages I read that used induction plates to cook on. They can be put away when not being used.

You pay a big price for choosing non conventional. That price comes in up front costs for non standard sizes, and in resale appeal lost. I’m a big proponent of designing to your needs, but you can’t eliminate 99% of any future buyers when doing so. Not unless you’re willing to take a 60K hit for someone to pay for an immediate kitchen redo as a condition of the offer.

He wrote, "my intention is to build the cabinetry for the combo in such a way that it would be easily replaceable and wouldn't need a lot of re-working to install an alternative" but I also don't understand his logic either.

Haier 24" 2.9 Cu. Ft. Gas Free-Standing Range with Convection

I have been planning out a kitchenette, and recently found these 24” options I thought looked interesting.

https://www.homedepot.com/p/Magic-Chef-24-in-2-2-cu-ft-Single-Electric-Wall-Oven-with-Convection-in-Stainless-Steel-MCSWOE24S/302693292

https://www.homedepot.com/p/True-Induction-24-in-Glass-Induction-Cooktop-in-Black-with-2-Induction-Elements-TI-2B/306164018

Still, for the price of these, you can buy a decent 24” range.