I might have a solution for you, but you will have to give it a thorough testing, First, set up a your wiki, ideally from scratch. Then go to the Configuration Settings, scroll down to the Advanced section and set the fnencode option to safe
. Then go down to the ckgedit section and look for these options:
Select which file/media browser(s) users can use
Select which file/media browser is the default.
Set both of these to dokuwiki
. These will give your users the native dokuwiki file and media browsers. The same initial dialogs will come up, but when you click 'Browse' you will be switched to the Dokuwiki media manager and linkwiz (i.e. internal link menu).
I can't promise it will be entirely perfect but it does seem to work. So give it a good test run and decide whether it's fro you.