wd20000h2q-00 power supply

I lost my power supply for a wd20000h2q-00

WD site shows WDPS039RNN as the replacement and it has been out of stock for quite a while.

Can anyone recoment a replacement from a 3rd party?

Doing a search on Amazon shows 3 different units…

http://www.amazon.com/WD1600B014-RNU-WD2500D032-000-WDG1NC5000N-WD1200B014-RNU-WD2500B015-RNN/dp/B0030BBH5I/ref=sr_1_1?ie=UTF8&qid=1357618573&sr=8-1&keywords=WDPS039RNN

http://www.amazon.com/Replacement-Adapter-Western-Digital-Edition/dp/B005PS5AP2/ref=sr_1_2?ie=UTF8&qid=1357618573&sr=8-2&keywords=WDPS039RNN

http://www.amazon.com/Wd25001032-001-Wd2500d032-000-Wd3200h1cs-00-Wd4000d032-000-Wd6400eb035-01/dp/B0078PV9GO/ref=sr_1_4?ie=UTF8&qid=1357618573&sr=8-4&keywords=WDPS039RNN

I would try calling tech support directly for a replacement. A replacement with the same specifications should also work.