Last night I bought a set of 4 spacers from ebay.
Wheel Spacers Skid Steer 8 Lug 2" Bobcat Case New Holland John Deere Cat | eBay. $319 with free shipping.
9/16" lugs. I found several threads that mention these on TBN, and they look like a good option for the 110 TLB.
I also ordered tire chains from tire chain.com. I got the duo-ladder combination in size 17.5-24, which is the size in the JD manual, and is the size molded on the sidewall of the tires. Didn't get the v-bars because there is asphalt on about 2/3 of the driveway. The duo chains are harder on pavement than ladders, but there is going to be a layer of ice on this every time I use them. $465 seems high, but there are a lot of places where slipping off the driveway could put me down a 40-60 foot drop. Looks life threatening to me.
Anyway this is the sixth day we have been up here without being able to get a car down the driveway. We usually get 2-3 days where the driveway is snowed in 2-3 times per winter. I think this will let me clear the drive with the bucket.