After priming all of the baggage area parts, I went back and completed the assembly steps.
Picture 1 shows the small countersunk pop rivets used to hold the nutplates to the Centre Section Assembly.
Picture 2 shows the retainer block on the Centre Section Assembly (I think they are used to guide the wing spar as the wings are pushed into place). I had previously covered the brass bushing with tape prior to priming. This is still in place.
Picture 3 shows the retainer block on the Forward Bulkhead Side Assembly.
Note: Indeed, the Retainer Blocks allow the wings to be held approximately in place prior to insertion of the spar pins.
