To the outside world, it looked as if Killeen Engineering Fabrication was the model of success.  The company, based in Enfield, Co Meath, manufactured, installed, and maintained automatic gate systems; the sort of security gates that you can open and close from your phone.  And it seemed that people were prepared to pay for them – plus the option of maintaining them. From a standing start with just two staff, brothers Desmond and Ben Killeen, the business ramped up to close to 50 employees. There was a new showroom, new products, and an increasing customer base. Indeed, its financial model,…