Since this got resurrected, I know firsthand you can email Addco sales directly. I believe its just sales@addco.net
In 2017-2018 I waited months for Summit and Jegs but finally cancelled. Jegs I waited about 6 weeks and I gave Summit about 3 months.
I emailed Addco sales explaining that resellers were just fond of holding my money and asked if the 639 was even still made. The response was such that he thought it was almost stupid that I asked. Told me to email them or call and set it up: 2 weeks out, I'd have a new bar.