Yikes, I found weights per bottle varying from about 2.5 to over 4 lbs. 1000 bottles could easily weigh well over a ton. (And of course, such a rack will be huge)
Maybe the rack needs to be self-supporting and sit on a foundation. I have no experience to qualify this - perhaps this would be a good time to hire a structural engineer. I paid one to design a long beam to hold up a roof - he was referred by an architect firm and was surprisingly affordable.
JKJ