Wondering where I can get a 7ft Harbor Breeze down rod, was told by Lowe's they do not carry them.

I believe Harbor Breezes use 1/2" downrods, try other places that sell fans. Any downrod will work if it is the same width. How tall is your ceiling?

http://www.ceiling-fans-n-more.com/c...-fan-faq.php#8