I can recommend the Wildfire 4 post. I've been pleased with it. It's a carbon copy of the Advantage Lift. Regarding the rolling bridge jacks, I bought one from Wildfire and like it. They are reasonably priced compared to some others, but KaTool makes one that I just bought to have two. I am very impressed with it. It is very, very similar to the Wildfire, and in fact, the bones are beefier. It was way cheaper, too. It does , however, stick up a little higher than the Wildfire, which may be an issue for low vehicles. Nothing a 2x10 won't solve if needed.
Best Buy Automotive Equipment was great to work with and is not a fly-by-night drop shipper.
I also went through something very similar after buying a tire changer/balancer combo early last November. The seller told me it would take 15 business days to ship the order. I waited almost 5 weeks and still nothing. I tried to call several times, but only got voicemail. I advised him that if I didn't hear back by the close of business, I would cancel the order and dispute it with the credit card company. He wasn't happy and claimed he had been in airports all day, but bless his heart, he's the only chap on the planet who doesn't get emails or phone calls while in an airport. He claimed it had shipped, too, but it had not. He provided nothing to support that to the credit card company.