This is a picture of the pre-measured bimini I purchased from this site. It was easy to install and I didnt have to fill out any of those measurement forms.

Bimini installed and open

As you can see the bimini goes around the back stay. It has a zipper that allows the canvas to go around it.

Bimini installed and open

You cant stand up underneath it, but it does allow plenty of clearance for the boom.

Clearance