Midwest supplied their product to FC to market. FC did not supply specs, design, prototying, fixturing, engineering, or any financing for product development. The same is true for FC finish mowers, tillers, disc mowers, etc. FC imported a product already being built and available from a variety of vendors.
So, if FC uses another vendor the design specs will change as they did when FC changed from Caroni to Sicma mowers.
Should FC get another manufacturer to reverse engineer an exact copy of the Midwest product, they have several gotcha's in store as certain design elements are protected.