You have already taken the kegs there as checked baggage on a plane? What airline let you do that, and who did you have to talk to to get it worked out? I didn't realize they would let you do that.
Sorry I can't help, I'm further from MN than you are.
It was United Airlines. Carlos was diligent in contacting their dangerous goods desk and making sure that anything
checked met the guidelines. Specifically low psi, low alcohol(<6%abv), and most importantly DECLARED.
I have to admit that I helped with minor assistance with the construction of the encasing of the kegs. But they
were clearly marked with directional UP arrows, Fragile stickers. Individually bagged, and wrapped in bubble wrap,
placed in a wooden frame crate wrapped in corrugated cardboard, and most importantly weighed to ensure they
came under the maximum checked baggage weight of 70# (61 and 58# respectively.)
I would love to say that I had a say in it but really I only made sure some screws were ground down from even
coming close to the kegs. Carlos did ALL the work.