Crowbar for models, and addon for Blender "You need 3 programs and an addon for Blender to rip something from gm.
1 gmad.exe you need it to unpack the addon.
2 Crowbar.exe to recompile 3D models into the SMD format.
3 Blender source tool for opening SMD models in order to convert them to the desired format (the dice also rip).
4 VTFedit for textures, from vtf to any format you like.