Keep it simple! I wouldn't take more than one lens, say a 24-70 or similar with a filter for protection, extra camera cards which after shooting, I wouldn't store with camera, just in case it should disappear!. Therein lies greatest problem, insurance. You might have to go for specialist one off insurance as most holiday policies will not cover the replacement cost of an SLR.
To carry camera, a small non branded bag should suffice.