A resource recommendation - the people behind the channel The Suitcase Designer on YouTube have stayed in Korea for several years (as American citizens), and are doing so at the moment on tourist visas. I imagine some of their past videos might be helpful resources to see how they got the right approvals.

You will find many people who think the same way in r/notjustbikes and r/walkablecities

One the things I do as an urbanist DN is take pictures of all the trains and train stations in my destinations because I just don’t have that where I come from! DN-ing is also a path towards finding a place with a good balance of urbanism, affordability, and community (among other things) so I can settle there for the longer term.