Further to the images posted by Hat's Adm. I attach a few pictures of the forthcoming command set, marching along with a battalion consisting of figures from set 8095, to verify their compatibility: I think that the result is positive.
I downloaded the flag from the web site "Napflag". Inspite of being a little bit obsolete and not being recently updated, it includes almost all the countries involved in the Napoleonic period. You can find something useful on Pinterest too.