WE 396a tube help


I am looking to get either a single or pair of WE NOS 396a tubes to go into my paradisea dac, but after looking I am a little overwhelmed and am not certain what to buy. So, what is the tube I should look for and what about is a average price to pay? (I ask because I have seen everywhere from $6 ebay specials to $300 cryo tubes and although not stuck to a distinct budget, I just don't know what to get.) Any help would be greatly appreciated. Thanks.

Also sorry about a dac question in the amp/preamp section, but it seems most tube questions are asked here.
happybrandon
Post removed 
Hmm, I posted a reply last eve but it never showed up. Anyway, stick with Western Electric. I've read a lot of post that state this is a case where the WE label is better. Stick with a reliable source. Tubesandmore.com has them for ~$28/each. They are out of stock at vacuumtube.com but they differentiate the older NOS 396a (more expensive) than '70s production.