Problem with all of the solutions is that I'm broke. I'm not kidding either, I mean broke like 2 digits in the bank in between bills.
I found a deal on a single 285/35R19 DWS and bought another new. I know, you want narrow and square, but I can't afford that either. The deal on the one tire was good enough that it made buying another one new cheaper than any other option.
Can't afford fronts yet of course, so that will be interesting. I know it's a bad setup, but the winter isn't getting any better (had snow on the ground for over a week again already which parked me, thankfully we were able to borrow a truck but that's gone now too). The stocks are so bad that I couldn't get out of my driveway. Roads cleared 2 days later meant literally nothing to me because I couldn't get down a 300 foot long flat piece of driveway.
The plan is to put DWS on the front sport wheels as well when money permits. Then these will likely become my winter wheels/tires and I'll work on new wheels to start over for summer. What a giant PITA. Very light snow and cold cold roads are the norm, and I think the DWS will be perfectly fine in that. This crazy 4+ inches on the ground for 10 days at a time thing, bleh.
On the plus side, the TrailBlazer SS on Toyo Proxies II is rocking it. Thing eats up the snow and ice too surprisingly. Stops like a bus (when doesn't it), but turns and accelerates like the snow isn't even there.
Really, really wish I could park the Z for the winter. I'm more afraid of other drivers than anything else. And the 2 big hills haha but I can always park at the bottom and have the g/f pick me up in the TBSS.