3D Print of Aesir TS-25 Valkyria Light Transport/Shuttle

Hello How should you connect the Upper walls on deck 4?If i have the Normal pins towards the side installed, it is not posibble to atach the ones facing Down to the fusselage. Or should you only use the small ones if you want to open the Side easyly? By the way, the upper Wall Segment with Ladder is missing a Pin Hole on the left side. But untill now it is a realy nice Print Expirience, Deck 4 Locks great so far. Thanks a lot for the Design!