Just park the 996 in the street Stone, it will be fine...
If I had the room, a 4 post lift would be my choice. I think it is the best combination of storage and serviceability. As it is now my garage is tight and honey won't even consider parking the Lexus outside so I will continue with the well tested floor jack method.
I am currently looking at another commercial property with an auto bay and if it goes through I may move my workshop and car storage there.