In order to attach the fairing to the rear of the cockpit, you need to get the canopy parts ready as well
glue the two clear windows
inside part now covers the window frames
here is the inner channel for the canopy rear link
glue the fairing in place by aligning the black patch on top with the fuselage patch
now the thin fairing that connects to the vertical fin ( that is a very tricky part )
and fairing is done.
My version will have the canopy in the open position.
Isaac