Very good point.I did use the Timken HA590079. It was $115 compared to a $58 generic that they had but you don't want to do this job every few months.
I haven't done this job on the Caddy yet but I found the bolts much easier to remove if you hit them with heat first. Every setup I've seen used loc-tite from the factory which is near impossible to break loose with hand tools if you don't heat them first.As mentioned above, don't be tempted to get those 3 hub retainer bolts out with the knuckle in place. It looks like you can get them all and you might be able to get a tool on one of them but you will never be able to get enough torque or rotation on all of them.