I've got the same cannon and mine was missing the sponge. As far as I can tell, these Spanish cannons came with a brush and maybe a sponge - or was it another brush? I bought a 12 gauge swab, but had to buy a tap to be able to mount it.
They didn't come with worms, so I'm making one custom.
I haven't seen any real cannons with the rammer, swab, and worm mounted the way the Traditions set them up - over the top of the axle. Eventually I'll make some mounts to scale, and run them below.
I'm missing one of the tool boxes. Any of you know where I can source a replacement?
Captndan - I could make replacements for you, but my time would probably work out to a buck an hour. Hard to get me motivated for that, except to complete the one I've got.