Hmmm, might be able to get it cheaper if you look around. I bought the rear tire alone at Del Amo for $100. Cycle Gear mounts the tires off the bike pretty cheap, have great prices, and offer Hazard Maintenance if you get a nail or something. Find someone with stands and take the wheels in. Might save $40-50??
These are very nice tires (compared to the non-radial BT-45's we used to run!).
Get 'er done!!