Sled dimensioned drawing does not have the sled dimensions

I am making a dimensioned drawing of the sled so I can create a 3D model of the sled. Could you please help me check this dimensions? (Units are inches)

Also, in the github mechanics there is only this bracket, but not the ring bracket.

Does anyone have the ring bracket design? the distance from the center to the three alignment holes is not the same for the three holes.

If you help I promise sharing all my engineering drawings/models in the end.

Nevermind, please ignore this post. I just found the files in the community garden.