Push the metal!

Spoiler

Would work more smoothly if you used round pillars instead of stone blocks underneath the metal sleds and added a block behind the draggable. The sleds get hung up forcing B to make multiple pushes to get them into place, which ends up making the game play overly repetitive.

Same move over and over but I liked the fact that if the top metal rotated (like it did for me on the 1st attempt), R will still go to the win. Thanks

Fun use of that trick!! Thanks for sharing and well done @EL797