This is an interesting one.
Both in recent times and over the years of this website, the debate often recurs regarding the extent to which a suggested production run of an 00 scale model would be viable or not, based on how "specialised" it was in some way or another - maybe only in existence a short time, only operating in certain areas, or only used for one purpose. The argument goes that such a thing isn't viable, because not every modeller wants to model the Glenties branch in exactly 1931.
These "Jintys" were common as the commonest thing in Commonland - in Brexitstan. But HERE, there were but TWO of them, and one only operated a decade or so, the other little longer. More than that, theire sole function was to shunt a single terminus - York Road - and its associated dock lines. Even under "Rule 1", to have one operating on a main line train or anything else would be stretching credibility. In other words, it scarely possible to have a prototype with a MORE restricted background - or, to translate the logic to model production, a more limited market - in theory, anyway.
How many of us are modelling Dock Street in Belfast in 1959, in "0" gauge? Now THERE is a "limited market", if ever there was one; as it is in this, and only this, environment that such a locomotive looks anywhere near appropriate.
Yet there it is; and not even 00 scale. In 0 gauge, as above posts point out, there's almost NOTHING Irish KIT-wise, never mind RTR.
So, either we're looking at a fortunate one-off (and for once in UTA modelling, with correct coloured lining) - or a sign that supports the opinion of many, in that you start providing stuff and the market will grow.
As the Leaving Cert exam paper might say, "Discuss"!