Dovetail to Pic Rail with cutout

https://utahairguns.com/fx-dreamline-20moa-picatinny-scope-rail-aeroncz/

Saw this over at Utah and while I’m not a fan of the price, I love the idea. Anybody seen one of these or something similar? 

It is specifically marketed for the Dreamline, but I have to think this might be perfect for a Crown/Red Wolf/etc. I wish we had better options for dovetail rings, and this might be a great option for leaving the magwell open. Just not sure how high that dude is.