Thank you guys for the responses and pictures. Excuse the long read ahead. Feel free to skip to the last two paragraph.
I went back to the old couple I bought it from got those pieces in the third picture. (4 hour drive)
Since I was already on the opposite side of the state (Washington) I found Blue Water Yachts that service Macgregor and showed them these pictures.
They confirmed what you guys said. First piece is the Quick disconnect, third picture is mast to boom support or something like that. I believe you use it to support the boom when moored.Boom Vang you guys mentioned (thank you for the picture)
And the second picture that I drove hours for is apparently holders for dinghy if I had a much larger boat. So completely unrelated to me.
He sold me what he said I need which was, a steering clamp bracket with ball, a rudder cross bar, and a steering cable holder.
He said my boat was redone to be a power boat only and I’d need that last piece to attach to the rudder.
After all that I came home to found that I already had the rudder cross bar and the steering clamp with a ball


so i ordered it for nothing, since I thought I didn’t have it. Hopefully I can. A cdl the order for the rudder bar.
Here are two pictures of my current set up. Since I now have a rudder cross bar. First one is just the rudder bar laying there, but I didn’t have the bolts to connect it. Second picture is if I disconnect the quick disconnect bar from the motor. I can attach it to the bar. And it moves the bar back and fourth.
This just leaves me with more questions on the first picture I posted, do I still need that? And where does it go? What do I connect the two balls for that are on the starboard side of the bar. And what attaches to the two brackets on the side and bottom. Maybe I’ll find out when the pieces he sends me come in.
That’s why I was hoping someone have a picture of a setup. Since the picture of the M model is different then mine.

I disconnected the quick disconnect bar from the OB andit fits onto the ball on the rudder bar and appeared as it would move it, when I turned the wheel

Two Ball points, one on the bar, and one on a clamp bracket

Original set up and the only pieces I thought I had

Does the Quick disconnect bar go to one of the ball points?