Bruce T
yes they make basin wrenches with wider jaws.
or you can buy the belled set of thin socket wrenches you use to remove shower stems, stack them on top of each other to elongate and turn with a large screw driver in the hole that they have in them. (break off the copper tubing thats in your way first)
Or just do what I do, get pissed off, remove the handle and spout,violate that chrome cover with a pair of channel locks to expose the brass ON TOP of the sink and take it out with a sawzall! 
