Gear Box Repair Help!!

My X3 was skipping a bit when putting it into high until eventually i let my buddy drive it and didnt tell him to let it engage before pinning it and he broke the shift fork into high. I got the shift fork but when looking at its shifting sleeve and the gear it engages to, i found it to also need to be replaced. Looking on their oem parts break down they only list the main shaft with everything on it and im having a hard time finding just the shifting sleeve and gear on its on anywhere. Anyone know where i could find these? If you look at the pic below the shift fork is 19 and 2 is the whole main shaft. I want the shifting sleeve that 19 slides into and the gear to the right of the shifting sleeve.