Yes, Rosette folder is not a good example, my bad. The most complete shots are in Sombrero (gain and powermate x2), Pleiades, NGC5128 folders. I'm going to take your advice to build a library of darks. It's a pain to do that during the same night. Thank you!
I am willing to pay if they have a good portfolio, for sure.
Thank you! I will take your advice!
I added stacked files to the google drive folder to make life more easy. But they were stacked with ASIStudio/ASIDeepStack which I don't know if it the best choice (thats is why I did not upload it before)
thank you all again!