Help with wide arches

[Nutty Nova]

Hey guys i have bought a subtle wide arch kit, but could do with your ideas on best way of fitting the kit.
Is it best to pop rivet the arches and bond them on and skin the edges of the kit really thin to smooth it in?
Not quite sure what to do.
Cheers

[carls nova sri]

just make sure there all lined up square and fit it the way like you said