I did mention - in post #2. there's those long bolts involved, but its not that bad. The 220A versions are heavier yet than the 180A version used on 5.7s...I can tell you that.you left out the part about taking loose the alternator as part of getting the timing cover loose and then bolting it back to the engine and timing chain cover to finish up the procedure.
it took me 4 days to swap out my alternator on this car, so those two steps alone in that procedure will probably add 24-36 hours to the total time spent on the service if I do it myself.
My '92 Lumina Z34 required separating the lower control arm / ball joint to have access to r & r the alternator (FWD transverse V6 (DOHC)) and it was on the backside of the V of the block (between engine and firewall) - that was a job I paid to have done when the alternator died...I knew I didn't want to attempt that one.
I can't recall if the half shaft had to be pulled - I recalled reading the procedure in the service manual...I knew enough to not take on that job.