The sheets I have won't be large enough to cover the whole roof so I'll need to join them, what would be the best way to do this?
Overlapping them (probably would look tacky)
Stitching it (Which I wouldn't know where to begin with

Putting something over where it "joins" to hide it
And also does anyone have a guide on how to take the roof off?

I'll have a look through my manual when I get home or try look through the service manuals aswell.
Cheers