I've completely given up on vacuum tubes.
Mind you, I have a few thousand of them from my dad's hoarding....he never left a box of them sitting when he found them. Then he sorted all the tv tubes out and trashed them...so mine are mostly audio and ham related.
*IF* you want to buy a hickock tester and either match them up in pairs or get it calibrated, you might be able to make minimum wage listing them on ebay.
If you do ok with what you've got, follow up with me and we'll get you more!