Menards has an ad in the new CTT for the modern Menards store buildings. They are offering both buildings (main store and garden center) together for $$179.00 at their online site, a savings of $20 over buying them at their store. The animated figures and doors look O scale while the buildings are very compressed from the real thing. Still, there are almost no modern era buildings offered in O and this would give you a (sorta) Big Box Store. Their water tower would go well with them.
John