The roof had already been chopped 

But Badly, roof cut in 4 sections and then sections of 

1.6 mm steel welded under the gaps then filled with bog filling the gaps

Use a roof section from a sedan, weld in.

Skim of bog

after the chop the rear window was long and narrow, so a cut down 

sunroof was made to fit.

The window will open and can also be removed if required

2 speed wiper motor mounted behind fire wall