By putting it near the top of the list, you decreased the time required for you to experimentally determine that you were outgunned with respect to tools required to accomplish the job.

Sometimes one can work around the need for a specialty tool; sometimes not.

In addition to a tool for keeping the crank pulley from turning, I saw some references to using a square drive extension to get "outside" the fender well to allow use of a big breaker bar (and sometimes a cheater on the handle) - with a jackstand used to vertically support the outboard end of the extension.

Hey, at least you didn't get into a situation like the poor guy who manages to get the drain plug out of a differential, but then is stopped cold by a recalcitrant fill plug...