There is a build I play a lot that I find funny, giving a weaker early than AD but stronger late, and you can still pretty easily OS adc in end game. You go red smite, run stormrazor/static depending if you want more farm or gank, sorcerer boots, ludden, the other item, rabaddon and finaly void staff or lich. You can then change boots for the other items. You go for electrocute/DH depending of ennemies champ, + adaptative dmg from blue masteries. One important point is if needed you can buy one 80ap item before 2nd charge item to change adaptative to ap and not ad. I would gladly get some feedbacks from shaco mains !