I would think airbags would be better that way the wieght is distributed over 4 bags instead of one fulcrum in the middle.
I build a steel bridge for our hay wagon to drive on with patrons, I only have 4 airbags and they lift the weight of 40 people, wagon and steel bridge( about 7,500-9,500lbs). I haven't had to replace the airbags in 3 years so far. the bridge sits on a concrete slab, only 2" off the floor and the airbags are mounted on the sides of the 10" I- beams so I don't have to have the deck high off the floor incase it has a blow out. it only raises the deck from 2" down to 6-7" up.
with airbags you can make the room tilt and drop all 4 once too.
I also did the same thing to a school bus. I made it in to a prison simulated bus ride. 4 bags lift 40 people and the weight of the bus( minus the motor) from the frame, wheel and axels remain on the ground.
Good Luck, Phil