Disabled gamer looking for a little advice

Hi guys, I'm (a bit) disabled, with some neuro damage that limits my twitchy hand-eye coordination, so I have trouble with gunplay and rapid key inputs. It's okay though, because I mostly just bum around on wukong and hold E while my clone does all the shooting.

I'm at the point where I've done pretty much everything in the base system and I'm starting to look at steel path, and I think my beloved Hate/Nataruk outfit is starting to look a little in need of an upgrade.

I'm probably not going to be able to make Hate work into end-game because I won't be able to reliably manage the incarnon, and all the builds I can see for it are tennokai, which I'd also have trouble with. What's the theoretical most viable "literally just hold E" melee for end-game?

And what should I be sticking on my clone for ranged? There's all sorts of good stuff, obviously, but wukong clone is notoriously a bit of a silly sausage and I'm not sure that anything recommended for the player to use is going to translate to his wonky AI. Is there a consensus best gun for monke twin?