Retiring to Nepal- Best Places to Live & How Long Would It Last?

Hey everyone, I moved to the U.S. from Nepal at a really young age (around 12) and have been living here ever since. I’ve been working as a physician assistant for a while and have saved up about $10 million USD, mostly through investing, and I currently make around $168,000 a year just from dividends. I’m seriously thinking about retiring in Nepal and spending the rest of my life there. I’m looking for a place where I can live comfortably with access to solid infrastructure—good hospitals, roads, electricity, reliable internet, and all the services you’d expect in a developed area. At the same time, I really want to be close to nature, ideally somewhere where I can take a 10-minute walk and be surrounded by greenery, trails, or peaceful natural spots, but still be close to a city for convenience. I’m also planning to build my own house and would want it to have all the modern features like central heating and cooling, automatic systems, and basically a design and setup very similar to what you’d find in a typical American house. Does anyone have experience with building a place like that in Nepal or know areas where that would be possible? And realistically, how long would the $10 million last me if I wanted to maintain a pretty high standard of living? Any help or suggestions would be greatly appreciated