The A-7 full asymmetric lift was $4,652.00. Installation was $350.00, freight was $168.00, custom hydraulic lines at any location across the ceiling so as not to interfere with lifting were $200.00, and custom lifting pads for the Viper (since the side sills are almost the same height as the frame) were $200.00. Total cost with tax was $5,904.20.
There is no cable going across the floor or ceiling between the posts like most other lifts. Most lifts will have a single hydraulic lift that does both sides via a cable across the floor or ceiling which tend to stretch. The twin piston cylinders for each column are 4" in diameter. What is also nice is that there are no moving parts that need to be maintained. They use 8 sealed bearings instead of plastic slide blocks that need to be greased. I don't really want to know this much about lifts, but I do now. I am sure that there are other very fine lifts, but this seemed to be the most well made that I came across. One of my criteria were to be able to drive onto the lift without blocks of wood to get me over the arms.
When I do not know enough about something I always take the recommendation of the most knowedgeable people I can find. I have wanted to buy a lift for a year, but there was never a clear cut choice for me. They either had this or that, but never both. This one may not have everything either, but it does have safety (built stronger than any other), clear working area, doors not hitting the lift and low profile of 4". I can also use it to lift my motorcycles. Call them and they will send you out a 20 page brochure. # is 800-833-2006.