/cgl/ - Cosplay & EGL

>>10568892
I'm planning on cosplaying Faust from the upcoming Guilty Gear Strive, and thought it might be a fun touch to use stilts to add a foot or two to my height since Faust is canonically over 9 feet tall.
My question is this: If I do use stilts, are there any effective methods to extend my arms while still having them be emaciated in appearance? I'm pretty sure if I don't (I'm 5'7") then my arms will look short and it will defeat the purpose of trying to make myself creepily tall.
Ideally, I'd like to use prosthetics, but all the designs I've seen might be too wide. Do any of you have experience cosplaying incredibly tall and skinny characters before? How do you deal with arms?