https://turbowarp.org/projects/1316365429/ You need this link because the project uses both a 270 height and 60fps, both of which base Scratch doesn't have. Also, note I cooked this up in a week or so, and this is just a working prototype. Will improve and probably finish in another week or so. Future me here, and I've finished it, so minimal bugs and the rest is history.
I used a variety of sources. A sprite dump from reddit you can find by searching "fnaf sl custom night assets" Spriters Resource and Sounds Resource per usual ezgif.com for splitting sprite sheets and gifs https://fnaf-coop.fandom.com/wiki/FNAF:_Sister_Location/Gallery for the thumbnail. Art by Smallam.