Good or Evil fame

[Zero123]

I'm choose the undead class so people don't like me any way so based on armor and weapons what's better to have good fame or evil fame. Also if I have max good fame will guards and villagers treat me with respect or will being undead always means I will get insulted. One last thing and this is random but where can I get contaminated water. Sorry im a noob sorta.

[Sylon / Redshift]

It doesn't really matter whether you are good or evil because you can find great items for both types. (There are great unique weapons and armor with "evil" alignment early in the game, but if you are patient enough a little later you can find great armor and weapon for "good" characters too.)
Because you are undead, people always will "insult" you, but believe me if you are evil too this will be worse. : ) But these are just words during conversations, don't care about it. If you think the undead character is cool, then play with an undead! The fun is the most important thing.
You can get rotten food or water at almost every inn/tavern, just keep trying! (If you can't buy it right now, leave the inn and come back later.) Also check the barrels/vases too on the streets, sometimes they contain food or water.