MOST WANTED: Dynasty Sketches

I am searching for original Nolan Miller sketches. I am interested in all of Nolan's colored sketches but in particular the sketches made for Dynasty, especially for Linda, Joan, and Diahann (and even more so their formal gowns), and also the formal gowns made for Elizabeth Taylor. But any of the large colored sketches by Nolan interest me (such as the ones posted below).

WANTED: If anyone has any information on the whereabouts of original Nolan Miller sketches, please let me know!