SM interior mod in it's default state, on which TWoS interior is based on, contains such items but they have been removed in order to preserve game performances and stability.
I learned few things about game stability since then so the optional addon for TWoS which will bring back SM's salami and crates could be possible.
I'll see what I can do but I'll need some time to test the stability of the overall game and to resolve some conflicts with other optional TWoS add-ons.