So ive been playing this build for a couple of games now and it has felt really nice. The main focus is to be as strong as possible in the early- and mid-game, since those are the stages of the game that Kled already does, wants and has to succeed in the most.
I tried to achieve this goal by going alacrity, since it gives you a little AS, even without Stacks and joat for haste aswell as additional damage. Five joat Stacks are very easy to get on first recall (either with boots and mote or dirk) when you have Dorans Blade. You can also get all ten joat Stacks with quite a few items on the last item slot (maw and endless hunger are the ones I currently go for). Hubris and dd also made me feel decently tanky and threatening damage-wise in the later stages of the game. Especially Gluttonous Greaves feel very nice with the healing for pseudo tankiness and sustain if you are ahead and them and help with joat Stacks through Vamp and MS.
The only thing im kinda torn about is if Cashback would be better then triple tonic, but I think tonic is better because it gives you more value in the early- and mid-game and Hubris is the main item you kinda need to rush to start stacking as soon as possible, wich Cashback doesnt help with.