The hose you list is from the block connection between the heads to the waterpump. You need F5RZ-8260-B, this is the upper radiator hose with the smaller hose that connects to the coolant tank. That hose lists for $61.62, got it from Signature for $46.22.
Still waiting on one more hose then ordering the special tool for the spring clamps before I do the job. Approx. total for the hoses for the V-6 will be about $220 with the CEG discount. The SVT model would be a bit more because of the few extra hoses to the oil cooler.
