Revo Six mod of Delta-P fan duct V2-R2 for bear extruder

I've bought an E3D Revo Six for my custom bear. To get easier access to the nozzle for changing, I've printed the Delta-P hotend cover and fan duct, after tweaking them to my liking (thanks a lot for sharing step files, teookie!).

Changes are:

• Cosmetic
  • Removed the unnecessary mounting hole
  • Removed the hexagons (uses a litte more filament, but prints quite a bit faster)
  • Turned the rounded edge of the fan duct into a sharp 90° edge (prints a little cleaner)
• Reinforced one of the mounting holes of the fan duct
• Remodeled a broken (?) corner
• Modified the cover for M3 heat inserts (but a version for hex nuts is included) 
• Added a tab to prevent the Revo Six hotend from rotating when changing the nozzle

I've made some cosmetic changes and some specific to the Revo Six hotend.