IKEA Lack Door handle and latch mount

Yet another Lack door handle. Designed to mount the push button latches used in caravans, campers and boats. The latches have a positive locking action and do not snaplock, requiring manual pushing of the button to both positively lock and to unlock it.
Here's a link to the type of latches. These can be bought on Amazon or Ebay, the latter is a bit cheaper and it's where I got mine (A few quid / bucks and having took one apart to consider re-engineering it, just didn't seem worth the effort).