Re: clean humbucker
In the bridge, defenitely a Screamin' Demon those cleans are so amazing! I've never really tried the '59, but I heard the Demon's got better cleans. So it'd be the perfect choice for the bridge IMO. Very sparkly and glassy, with a little bit of midrange warmth.
For the neck the Jazz would fit the bill if you needed a very clean humbucker, with a very articulate response to your playing. Sometimes so articulate some people hate the pick up for it. For a touch of single-coil the DiMarzio Humbucker from Hell would be perfect, very glassy and single-coil-ish, more output than a sc but less noise and less output compared to a humbucker.