Looking at getting a ramp to use to load and unload gear. The main reason is so we don't have to lift those Yorkville 801p subs into the van. Looking to make things easier and saving our bodies. Those subs are 135 lbs each. So please help with suggestions because I don't know what the length should be from the ground to the van itself in the back. Thanks all. Please also include a price if you know what the price is.