You should be able to cut a bit of the hose off and slip it on there with enough room left for the clamp. Or, you can take the water pump off. It will be an all-day job, but with some free time and the right tools it's possible. For that third bolt (lower side under intake) you should just use 1/4" drive tools. I used a 13mm six point (you REALLY don't want to strip it), two 1/4" extensions and a 1/4 u-joint with a small 1/4 breaker bar type dealy, or another rachet with a u joint. You don't need to remove the power steering pump. Just one of the bolts that holds it on the bracket. Then you just swing it aside.

However, if you ONLY replace that hose, 99% chance that the water pump will fail within a few days. It's just how things work. Replace the water pump, tensioner, all hoses, and serpentine belt. All the effort really isn't worth it if you won't do all the other stuff, unless you REALLY enjoy making up new curse words for hours.