This is an interesting project so thought I would share. I had a customer that wanted to mount Deere's latest "Dump from Seat" MCS Hopper on a 1 Series. This hopper is designed for the X Series, but he wanted to give it a try.
Turns out is mounts perfectly to the 1 Series and to the JB Bracket for the I-Match. No mods necessary, fits right out of the boxes. He said it works great on the 3-point because you can raise the hopper high enough to dump on a nice pile, if desired. He is going to get some video of it in action during this weekend's mowing.
Take a look at the pics. I think it turned out pretty nice.