RW to WP -> I can understand but WP to RW -> I wonder why…
Don’t get me wrong, I love both platforms but it’s not logical to go from WP to RW. The framework is completely different and like you posted already… you can’t just migrate.
Can I give you a quick tip? Divi theme, it is a blank framework with a dedicated builder (no 3rd party) where you have all the modules to build your site like RW would work.
My 2c 