Weee! We did it Y'all, this is my home now. We don't need the R we can just be us.

RiF for at least 10 years.

This, it's going to be there and students need to learn to use it. Much like they google back in the olden times.

I think that will work fine.. You might put some carabiners on the cirners so you can take it down if you know there is going to be some bad weather.

You could also look at the rafters and tie the one you are anchoring to to another one close.

How big is the sail? What are you trying to attach it with?