Well, Alex if you're afraid of LinReaper, I can safely say that if you don't select to create menu shortcuts, then the only changed files on your disk will be new directory that LinReaper asks to create - it is a totally self-contained Reaper installation, not even WineAsio will interfere with your regular Wine (though regular Wine is of course still needed, I'm not going to package ~80mb of Wine files).
Furthermore, now you've got me curious: What tinfoil preparations have you done to your Reaper install on Linux?
Screenshot, for the lazy ones:
