Shortest I've seen with olympic collars is 5 feet.
When I have a ceiling issue with clients, one alternative is to set the bench up in the rack and press while seated/straddling the bench. It's awkward at first, and you're likely to almost fall backwards if you're not careful.
Another alternative, depending on where you live, is to pick up some cheap squat stands and setup things outside or another room. I have a client that has to do this.
Finding a shorter bar to press with would be the priority so you can do it standing up.