Sorry, I misread your original post. For some reason I thought that you were running bigger MT's than stock.
If you're looking to stick with a 32 inch, then a stock JK wheel should work like a charm - unless you want to run chains. If you want to put jewelery on, you'll need extra backspacing.
I think that some years of Grand wheels will fit on the JK's - but just be aware that anything with a 15 inch wheel may or may not cause you greif. Some people have had to grind their calipers to fit 15's onto JK's.
The upside to sticking with 32's is that you should still have some choice in getting into a dedicated winter tire. Once you start getting into larger sizes, there's not much out there for winter-specific tires. Of course...you could always go studded