Where to begin??? I have all Bobcats, 763, S185, S205, S300. We take the standard bobtach plate and with some fabricating attach it to a standard snowplow (2 meyer, 1 western, 1 curtis) All you need is the A frame and moldboard. I bought the western from a junk yard and spent about $1200 all told with the new hoses, flow reducers, wings, and paying General Rentals to do the fabrication. This set up is unbeatable.
5 years or so ago we had a guy with a bucket, catch an island going around a bank teller and it brought him to a sudden stop. His hand went through the door of the skid loader and it looked like you slaughtered a pig inside. there was blood everywhere. He ended up ok after a stitches etc. but I will never let that happen again. all it takes is a man hole nthat sticks up.
As for the model of skid loader, I like the 300 best because of the 12MPH. Understanding your needs at least get a S-150, 753.