I'm in tulsa OK, if you have a 20L or 30L dewar collecting dust, I can come pick it up. Ideally without a 6-8 hour drive. Much past that and shipping it becomes worth it.

Contact Mike aka Keeph8n, he has some 25-30L dewars in excellent condition for sale

I've got 2x 50L's, 1x 35L and 1x 30L

Decatur, AL 35603