Killing Hands and related powers, Can equipment enhance it? Options

[GWCarver]

Killing Hands applies to unarmed attacks. If the character is wearing brass knuckles or the like, would that increase his punch damage even with KH? Would it apply with Elemental Strike, Critical Strike and Distance Strike? What about a shock glove? The character can certainly use it on a kick even if he is wearing shoes or boots. Would other items that enhance strikes made with the unarmed combat skill work with these powers? My gut says yes but not on distance strike, since it is based more on the adepts energy and not on the physical punch. Any other opinions?

Also, opinions on weapon foci for unarmed combat. A pair of gloves, maybe shoes, or hand wraps, brass knuckles could it be a set of shoes and gloves? Maybe just a item worn elsewhere. Would they be bonded together or seperately?