Serpentine Belt Bypass diagram and length of Bypass belt?

That will take a bit of work. It looks like you could remove the pump to clear the belt path across the idlers. The belt would run across where the pump would normally be. For length you could take the belt you have, measure from one idler along the belt to the second idler. Then measure the distance straight across from idler to idler. Subtract the shorter distance from the longer and subtract that number from the current belt length, it should get you in the right area. Might I ask why you are eliminating the pump? It will make steering that car a lot harder.

I have a leak in the hose running from the power steering pump to the rack. It's been that way since I bought it four years ago.

That line isn't that bad to change out. Probably less work than trying to do a bypass. #15863688 is the line part number. You can get to it easier from underneath. The top fitting is tight to get to.