I have been reading as many posts as I can. This is a great site. I'll lay out my questions and concerns. I hope anyone can share some wisdom.
1. Space. Garage bay. I have up to 12' width and 14' in height for a depth of 5'. My overall depth is 16'. The ceiling comes down after 5'.
2. Structure. I'm debating the merits of carpeted plywood for the cave look or some type of metal conduit to hold the screen and netting or curtain type on a retractable wire for the sides or pvc with mesh tarp all around.
3. Ceiling mounted projector or floor with a box around.
4. Up in the air about the simulator. There are multiple uses. I'm a high school teacher and golf coach. In the winter some players will use it for practice. They range from 10 handicap to scratch. I plan on drinking beer and having friends over to play courses. They range from dangerous to good.
Has anyone used Divot action simulator from customdesigngolf.com? I have lefties and righties playing at the same time.

I'm not sure what I'm missing, thanks for taking the time.