I suggest you hire a tax accountant who is well-versed in 1031 exchanges to work with you. Your frustration is not surprising. These exchanges have many, many rules upon rules and each rule seems to have several exceptions. Someone who has expertise and experience will ask about all of the facts and details about the farm, the sale, the S-corp, your goals, your siblings' goals and more. With that information in hand, they can lay out a path forward and explain in detail to you and all other stakeholders before taking any steps.
Typically retirement plans and IRAs are not involved in these exchanges because distributions from these vehicles are subject to ordinary income taxes (unless Roth amounts are involved on which ordinary income taxes were already paid).
May you treasure the heritage of a 200+ year old family farm, and good luck to you and all of the siblings!