This looks intriguing, the how to video looks a little involved but if it flys as good as it does in the original configuration then this would make the Phantom way more portable and awesome!

https://carolinadronz.com/collections/all/products/phavic-conversion-kit-for-dji-phantom-3-advance-and

The Link
well it is the clickable link from above but just discovered that it is a broken link and could not figure out how to delete post.

Sorry I don't know how to make it clickable.
How about this one?
https://carolinadronz.com/collections/all/products/phavic-conversion-kit-for-dji-phantom-3-advance-and-phantom-3-pro

Phavic Conversion

Jeff

Yeah I saw this about a year ago but it was from a Chinese company.   It was posted on the other site.  As I recall, it got favorable reviews.  

I wouldn't mind having a Mavic but my P3P is so perfect, I don't want to mess with it.  

There is a few threads in this forum where you can follow a rebuild with this kit, search and you'll find.