I feel you are muddying the water in describing the structure of the long barn as a cruck structure (AJ. 15.7.04).
Crucks have been defined by N W Alcock and others in the CBA Research Report, Cruck Construction, as 'a single piece of timber, straight or curved, serving as the principal of a roof, and stretching from a point at, or close to, the apex of the roof to a point substantially down the side walls', often to ground level.
Sorry, but what we have here is a fabricated portal frame.
John Napier, historic buildings secretary, CBA Wales