For the life of me my mind doesn't work when it comes to compound angles.  I am trying to make a model of the tube shown in the picture below. I am trying to add the notches cut into it at both ends at compound angles. If you look at the attached model I inserted Plane 1 so it is taking care of the 98° angle shown on the top view.  My problem is now I need to basically take that plane and rotate it so it meets the 94° shown in the left view.  How would I go about doing this so I can make the cut?

Chris