Fabric:
I had some rivets to take care of at the front of the frame, but it's pretty straight forward. Front is held in by cross head screws, side ones you should know about (the ones you clip the cover on to).

There's a metal wire that runs from front to rear to pull the roof tight, I think that's just riveted on too, so just arm yourself with a screw driver and a drill and just take your time. If you don't want to keep your old roof we found it easier to cut through tight/complex bits then undo the bolts when we could see them clearly haha

Frame:
As above, very easy just two big bolts each side (You don't need to take the fabric off to remove the frame)