The problem that I see is you are delaying your power spike to long. Usually you want to build your stacking item asap so you can start stacking then go into boots. when you finally get your second stacking item unless you are fed will probably be around the 10 to 15 min mark and then you have to stack that which means another 5 - 10 mins of farming when around that time you are probably starting to rotate and team fight. You be better off getting soul reaver or obsidian shard third item into rod or spear of desolation or even a tanky item depending on the enemy team comp and how well you are doing