Kim Jung-Gi 2007 Sketch Collection reprint edition is out finally. It's huge. 1000 pages at 15x21x4.3cm.
It's selling at US$36, not including shipping which is going to be pricey for this 1.5kg book.
You can order the book direct from Kim Jung-Gi's assistant David via email or from Basheer bookstore (when it's in).
There's also the 2011 Sketch Collection that you can check out.