Oh and I think possibly you might have to have a github account to search for repos on github, but if you are new to all of this then sticking with just basic scriptnode and stock effects is better!
Also building these types of effects with HISE's stock effects is possible, but would be a lot more difficult than just using scriptnode (which is why I suggest it). Either way, my example contains all three effects you mentioned, Feel free to add more knobs as you see fit.