This is just a note to say that I'm currently working on a translator for the Recollect collection management system (https://www.recollectcms.com). The structure is consistent across implementations so the scraping logic can be reused ok, but sites can customise the metadata schemas and labels so there's a fair bit of checking and mapping that needs to be done.

There's 27 sites listed on their customers page, but I know of at least one more. Most are archives and special collections, and most are located in Australia and New Zealand. Lots of rich and useful content! Pointers to sites not listed on their customers page are welcome.