Aluminum top all the way. I purchased the hard top ( can't even sell the dam thing now). I saved 4 inches and have no noise and easy to remove.
Any sheet metal guy can build you one. The hard top adds about three to four inches the aluminum top adds none.Where did you get aluminum top at? I'm looking at getting a 700-2 Wondering how tall it is. My trailer only has about 80.5 inches of clearance.