Silverbranch Bow doesn't belong in this build, either as a main build item or just an option. The rest of the items in your build example are fine for an ability-based build, but you're getting nowhere near overcapping AS to utilize Silver's passive.

I'd probably say the same thing about many items in your "items to consider" category. Qin's Sais isn't worth unless you build significantly more attack speed. Dominance is also not that great as the % pen only applies to basics. Serrated Edge's lifesteal only applies on basics. And as this isn't a basic attack build, you won't quickly build stacks of The Executioner, so I wouldn't bother with that either, at least unless you separate into ability and basic attack or hybrid builds.

You like Silver's attack speed and % pen? Put The Crusher in its place. Need anti-heal? Brawler's. Otherwise, go with Hydra's Lament and try to get basics in immediately after ability use. You have these 3 items in your options and they're fine, but throw one in your main build to replace Silver.