I did everything by the book, level 17, and found this anti-perfect wand. Not only does it have useless skills and stats that increase the cost by a whooping 290,340 gold, but it also has 1 socket, instead of the 2 or 0 needed.

No extra skills/stats, bu once again the wrong number of sockets!

Finally I found one:

Price was higher due to the extra confuse skill.

I found my first Skin of the Vipermagi during my playthrough with Wizendraw, my Holy Freeze bow paladin, in Nightmare, Durance of Hate level 2.

I had 99% magic find. It rolled perfect (13) on the Magic damage reduced 9-13 and a respectable 32 (20-35) on the All resistances. I added a perfect topaz for 24% magic find.