Need a DIMSTYLE - need text to be centered and running north and south.

So i am doing some layout with some unistrut, they are spaced pretty close. i want to make a DIMSTYLE where the dimensions lines running east and west and the text is centered and flipped up north and has the mark on the dim line with the text following it. i want the text to be vertical and the dimensions to be horizontal. AND if possible, have a leader or line pointing to the center of the dim.

Does anyone have any suggestions for me?

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