>>7193018Cape is from GPSlot on ebay. He rarely puts them up, so I got lucky, but I think he also has an Etsy page you may have better luck with. Scottacus Customs also does a really similar one that also has lightsaber storage.
Stability-wise, he's just fine, he's just a little weirder to find that balance point. But once you find it, he's fine. The engineering for his legs is really simple but really damn good.
He feels a bit heavier than most model kits I've handled, but that's probably because he's larger and has a heavy "core" with his insides, plus all the layers to him with the robot parts underneath the "armor".