Im very new to circuitry, only getting into it about a month ago as I stumble through rgh3 on a 360, but I'm learning it as quickly as I learn anything with physical and tactile properties.

Soft Circuits made from laminate on copper foil would be easy enough to make anchor points to solder the LED to that can be stitched to fabrics without damaging the circuitry. Using the smaller LEDs he mentioned, braided wires, and a jumper to connect a battery pack, you'd easily be able to wear this basically everywhere.

Get a denim jacket, run the wiring along or even inside of the fold over seam that's iconic in denim, I don't know what the coverage of the lights are, but that could be figured out easily, then you just space the lights along each seam. Same for jeans and a hat. Alternative, a mechanics jump suit with hood and go full head to toe. You could even use jumpers by the neck and waist to attach hat and pants to the jacket circuit so you only have to have one battery pack.

Using the DIY soft circuit, you could make every piece of this at home with a laminator, scissors, and sewing kit, but I'd hazard to say a cricket cutter would make it easier. Hit up your nearest craft fair and there's bound to be a goblin that can do this in a week with a cool jacket from a thrift store.