Sounds like a sweet deal. I've had my nose to the grindstone trying to find a good, used 78" or 84" snow blower in MN, WI, and the Dakota Territory.
I hear ya. I called on a couple before I found this one. It had only been posted for a few hours when I found it. Someone had already called the guy and told him they were coming to get it. Thankfully they never showed up, so the guy called me back. I sat and BS'd with the guy for a while after buying it. He said he couldn't believe how many calls he got on it. I told him he sold it pretty cheap. He said he figured. I wasn't going to argue with him on the price though.
This is about the only 7 foot Lorenz I found during my search
3 Point Snowblower
here's an Erskine up your way. These have a pretty good rep
Heavy Duty Snow Blower