Good or Bad On-Hit Warwick Build?

Is this good or bad? My friend says its bad, but I want an unbias opinion.

Is this good or bad? My friend says its bad, but I want an unbias opinion.
It isn't ideal and I'd say bad for a couple of reasons.
yea good luck maxing out the mana stacks on this as a WW. Especially in the jungle where you can't rush this item as a first back and if you did get it maxxed, i'd say you maxxed it around the 40 minutes mark.
While wit end isn't a bad item it is way to situational of an item to be building, and me personally I've never liked the item on WW except in rare cases where I and my team need the MR shred.
I would replace muramana and wits end with some better tanky items. Your melee so going glass cannon hardly ever works. You'll just be blown up before you can even finish your ult.
These are my opinions of course and you can chose to disagree.
Alright, thanks for the detailed answer!
Manamune is bad. You could build rage blade on rammus and make it work tho tbh. You have 0 tank items though and that hurts. You need to be able to survive fights to get kills. Sated and Wit's should be enough for on hit.
Trade Manamune for SV or HP/Armor and it'd be a lot better.