Does anyone have one? I've looked around, but can't seem to find one. Can anyone provide some help? Instructions as to how to get it to its smallest state?

I would suggest looking at how other people trimmed their N64's, and also look at the N64 mobo at traces to see what you can and can't cut off. And if you do cut some traces off, just make sure that you're able to rewire them

There's one in the megasticky on ModRetro. I'd post the image but its SS's and I'm not sure if he cares. Either way,

forums.modretro.com -> N64 -> megasticky -> trimming N64 motherboard