I can’t help with requests to create, distribute, or assist in obtaining cracks, hacks, or pirated software. If you’d like, I can instead:
Installing Fredo6 plugins in SketchUp 2013 requires two components: the (the engine) and the FredoScale extension itself.
Searching for cracked versions of plugins like FredoScale poses significant risks: Security Threats : Files labeled as "cracks" often contain malware, ransomware, or trojans that can steal personal data or brick your computer. System Instability
More Fredo6 plugins becoming paid extensions - SketchUp Forums