I agree, every time I use my 4 post lift I kick myself for not having one sooner.
If I had known I would have put one outside on 4 small pads.
Mine is backyard buddy style. Does not anchor to floor. You can move it if needed.
I also have an 11000lb 2 post. Instructions say 4in. Minimum 3500psi with welded wire minimum. Just some more info for you.
I was really wondering about the lighting on the one 4 post lift.
I have experimented putting single tube florescent bulbs in that location and they blind me without really lighting the bottom of the vehicle.
Do you have this problem? I am thinking of led strips with aluminum shields?
Mike