Eric in North TX wrote:
Look in the yellow pages for
restaurant supply. They will have a selection of new and used
commercial units.

You can't do that.

It can be done if the will is there, although, it many be impractical.
To say that it is illegal is a stretch. Codes vary widely and
enforcement can be non-existent. No law enforcment cares about your
stove. Restaurant auctions are commmon. I have seen commercial stoves
of all shapes and sizes at auction selling for pennies to homeowners
and business people alike.

It may require special accomodation with regard to hook-ups and
flooring, but, it can be done. A smaller stove would have no special
requirements. If a larger one is desired then accomodation can be made
regardless of your opinion.