Hi Rebecca,
When I organized WLM Portugal back in 2019, the local contest had been stale since 2011, with non-working and very outdated databases. I decided not to use Monumental, which already was kind of anacronic and very bureaucratic to use, and instead exported all the items both from the former databases and from new/updated databases and other monument & listing sources into Wikidata, using OpenRefine.
Using qid as the monument ID has the wonderful and very useful advantage of freeing it from any official listing ids, which often do not exist at all for the listed monuments or are otherwise problematic. Just use the qid as the Monument ID in Wikidata, and you get total freedom on the identification of your listings.
It may look a bit challenging at first look, but the import, which is the most difficult and time consuming part, is kind of easy to do with OpenRefine. For the listing you can steal and adapt the Listeria code from the example above. Creating {{MonumentIDIreland}} should be very easy and straightforward, and there you are. This has the huge advantage of after the initial effort, reducing maintenance to almost negligible levels, which actually end up getting permanent maintenance, update and improvement from the Wikidata community itself.
You can also build or adapt other stuff, like monument maps based on Wikidata using the geolocalization, etc., and many other WLM resources already work on or include Wikidata monument IDs.
It has been months since I last touched OpenRefine, but there are some very good tutorials in video, including a number of them by Sandra Fauconnier.
Hope this helps,
Paulo
