Bump and update:
I'm considering running up to 20mm on the rear since it seems like I'd be able to accommodate them. So, I'm pretty flexible:
A pair of 12 or 15s for the front.
A pair of 12, 15 or 20s for the rear.
I do need bolts too so having those included is a plus.
I need to get this sorted before the snow flies. Prefer H&R or TMS.