Search here at Simviation; i have seen almost all of those here. If you cant find anything, go to netwings.org, nice selection of panels there

For some rather nice and unusual Japanese panels, search using the phrase "Japan panels Dwonload"--yep, ya gotta misspell 'Dwonload' because the fella's Japanese. . .  Comes back as www2u.biglobe.ne.jp/~LD-REP/japan_panel_page-2.htm.
     For sounds to all of these aircraft,  you can use the A6M2 sound file as an alias--actually, they already are aliased in CFS2, and those files will work fine.  There are no newer or better files for the Japanese small radials that I have seen.  C47s sound just fine with two Japanese radials on the wings. . .