Hello Darklocq! You're in luck, I started Google searching and found those brushes on a website of a band that use to do web and graphic design work. I don't know why they uploaded the brushes to their website, but it's good that there's a place you can find that missing brush set. I know all of his brushes were free to use, but I don't know if they were allowed to be hosted elsewhere. I saw the file you're looking for and it's in abr format and not in a zip file. I downloaded the file and checked it with Windows Defender and it found no viruses. I tried to check it with Malwarebytes, but my new version of Malwarebytes is acting crazy. I have all of the Nagel brushes and that brush set looks legit to me. If you do decide to download that brush set, I want you to be cautious and make sure you have all your security programs on and running just in case something on the website or one of the files goes crazy. The website doesn't look threatening at first glance. I hope that brush set helps you create your hairy masterpiece in no time.

Here's the link to that website and all the Nagel brush sets:

http://www.holeintheplot.com/share/tools/brushes/