Thinking of making a guard killing SK

[Zyba]

Never did a straight line evil character before and think it would be fun to try. Would rather do sk than necro but I have to ask. Is there a guide anywhere for guard hunting ? Dwarves, halflings, gnomes, wood elves, high elves and of course Freeport. Primarily I'm curious about what level I could go where even if it isn't the most efficient route I think it would be fun to try.
Thanks.