As the resident Mundo turboautist: I've tried Death's Dance Mundo, and believe me I sure as damn hell have tried it. It's trash. Mundo has way enough AD as it is, so he has to build attack speed for his right clicks to be a viable source of damage output, hence the 80 AD are wasted on him, as well as the lifesteal, even more so the lifesteal, because if the enemy team has no sources of GW against a Mundo, then you will win the game no matter what you build on him, because the enemy team is trash; hence the enemy team will always have a source of GW against you, thus making the lifesteal even more useless than it already is on a Mundo that has no attack speed items, and a Mundo building attack speed means he's not building tanky, so he's going to get bursted through the passive bleed, as if he didn't even have it in the first place
I'll ignore the rest of your memepost

Is a better list, in my opinion