Some others to consider (all would have to be used with your budget):
Manley Chinook - to my ears, this has the sound signature you're looking for.
Pass Labs XP-15 - a little more on the "neutral" side, a bit more detail and dynamics and a ton of gain and loading settings
If you prefer to buy new, consider the Musical Surroundings Nova iii. I have not heard this unit, but previously owned the Nova Phonomena, which was a very neutral and flexible phono stage. Not quite as much detail and dynamics as the other two I mentioned, but might be a good match with the Klipsch.