Although Kingpin's only film appearance so far has been in a DD movie, so it might be a Scarlet Witch/Quicksilver thing?
He would be pretty easy to do on a TV budget too, wouldn't he? From what I've seen it looks like you'd pretty much just need a martial artist who can do parkour, and some effects for his echolocation ability.
I just recently marathoned the first season of Arrow (which was much much better than I expected), so I'm thinking along those lines, with the echolocation effects and a billy club instead of a bow.
Who are DD's main antagonists? Kingpin, Bullseye... who else? They seem pretty FX-light characters.
The Hand for sure; otherwise... New York's organized crime?