The other pharmaceutical no-no is anything with pseudo-ephedrine, such as decongestants or the pseudo-ephedrine-laced versions of cold, allergy, or sinus medicines.

They are no longer easy to obtain in the U.S., but they are freely available in many other countries.

As far as cameras are concerned, I bought a very nice SLR with interchangeable lenses when I was a student in Japan in the 1970s. While I never took any other equipment, I did take the camera back and forth to Japan several times until 1991, when pieces started falling off of it. Customs never even noticed.

You do seem a bit over-equipped for tourist photos, though.