On the GR7 a much more complex fuselage build.
Connecting rods first need to be built up for the nozzle pairs
obviously canted fore and aft
Then, because the cockpit assembly is added at a much later stage the fuselage halves can be glued together
The belly moulding added
The nozzle connectors clipped in
And the nose built up
Then, as with the other builds the belly guns
again a two part moulding
and added to the fuselage, with the now ubiquitous odd shaped fin.