Nussbaum is the best unit I've found.....been using it for many years and is great....a bit on the expensive side but forth every dime.......we even put 2x4 tubing across the plates to lift mini vans.....
Now they have one that goes up to 9000#lbs...
JUMBO 7000 | Double Scissor Lift | Nussbaum Automotive Solutions
Morris