These are answers for Google Code (which I use and am very happy with):
But I don't want to host any binaries
in their websites
So don't - nothing in the Google terms of service requires you to do so.
I also don't have the need for wiki
pages
The wiki pages, like almost all the tabs on a GC site, can be disabled and hidden.
Why not create a Google Code page for your project (it takes about 2 minutes and it's free) and play with the admin options to see if it does what you want?