Er, meet me, foo. I'm busy for the next week and a bit but then we can meet and sort lots of shit out all at once.
And by the way, you're paying them enough, ask them for a sheet or two of recommended voicings.
I'd recommend coming up with triad and 7th voicings for a root on any string (obviously some shapes will repeat) and then the extensions should fit in fairly logically. Remember you DON'T HAVE TO PLAY EVERY NOTE OF THE CHORD! Omitting a 5th or 3rd can make life lots easier - and you can superimpose triads instead of playing 13ths and such.