A lot depends on how it was put away, but from what mine said, I think you should lay yours out in a long line and spread it out, then keep the long line, but bring the two sides in to the center.
Once you do that, put the cover into a garbage bucket starting at the back, and fold it back and forth as you store it.
Once most of it is in there, you climb up the back and bring that long line forward to the front along the roof, then you spread out the sides and hope it is long enough for your rig and will fit.
Removal is the opposite, bunch up along the roof, then with a helper keep putting it back into the bucket at the back as you feed it along the roof from front to back.
