Originally Posted by: maggior

Yeah, I'd imagine it's much easier to play these kind of crazy chords on a piano where you have 2 hands to make up the chord :).

One important thing to remember is that it isn't one instrument that is playing the harmony, it is the band that is doing this task.

So, if the bass player is taking care of the third you can ignore it in your choice of voicings. If the vocalist is singing the root, you can likewise ignore that. You may be left with only a few notes to cover in order for the chord indicated on the chart to be fully realized by the band.