Will 17x9.5 and 17x11 wheels fit a 73 duster?

Even the 285/40/17 is a hard tire to find. Most are Summer Passenger tires which aren't too bad. If I had to go with that size, I'd probably go with Continental DW's. Tirerack has them for about $175 a tire.

http://www.tirerack.com/tires/tires...4WR7ECDW&vehicleSearch=false&fromCompare1=yes