Exactly that, we listed the available 201s, Cravens, Mark 2's and then the 121's when they landed (selling a very large % of the run) on the Irish railway models website. It made a lot of sense with our simple logistics and website, to offer a 'one stop shop' for those looking for Irish models, which is why we also stock Oxford die cast models suitable for Irish layouts, and have commissioned a number of buses in bespoke liveries from Britbus.
In this regard, Murphy Models were supplier, and IRM retailer.
IRM and Accurascale are essentially the same, with a shared pool of manpower, resources, and factories.