Let me see what I can do for a box. I was kinda thinking it would be a 'franken-box' to accommodate the size. I will see what I can do for getting exact dimensions. Also, the 25 lbs was the pot only, the lid and packaging will add a few pounds.
Sorry, out of communication with the 4th and camping. I will bring it to UPS store tomorrow and get the shocking results of shipping to all corners of the country, just for everyone to get an idea. I think that everyone who has commented is correct, shipping will be a little bit scary...
Had a friend pick me up what had been listed on Craigslist as a 25 gallon SS brew kettle. Turns out that its actually 40 gallons/160 qt Aluminum. The previous owner had used it for maple syrup. Too big to fit on my brewstand. Aluminum with rivited handles. Thick walled, looks to be good...