Hi Miro,
I know is being some time since your mod was published but I recently ended with a spare R2-D2 UCS that needed some replacements parts and looking for ideas I came across with this post. What better way to reuse the spare R2 than building your mod. It came through very nicely and is already set in display along with R2. I also found a UCS sticker type from some folks in UK and I'm just waiting for it to give it the final touch.
I did create an instruction manual just for the head using Stud.io, in case you agree I can share it with the rest of the forum here.
Once again, great build and thanks for sharing!
Greetings from Panamá!
Taro