Skylift is the next generation of Skyhook after it was resurrected by Manitex. Both are good products but Elliott is the Cadallac. I bought an L60 Elliott on a International 4300 for $168,000 2 years ago and have never regreted it. It is equipped with a full set of lamp boxes and welder. My next one will have an Allison automatic. Use it with my A37 Versalift on a 6500 GMC for service and install. Bought both new from Power Line Equipment Rental in Roanoke, VA. They have a killer website with trucks just for signwork.