[all variants] Would it be possible to set GNOME 3 up with Openbox as the WM and Tint2 panel?

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http://ubuntuforums.org – Hi there! I've been googling some stuff about setting up GNOME 3 with Openbox as the WM, as well as installing Tint2 panel in it, and now I'm wondering if it's possible to do that without breaking the DE, 'cause I might try that. Also a little curious about setting Xfce up with Fluxbox as the WM and Tint2 panel as well. (Hardware)