Can I attempt to answer some of these questions?
Happen to have a front loading HE machine with hand wash? Not that I would suggest for others, I have turned wool sweaters and wool pants wrong side out and used hand wash cycle (even those pants saying dry clean only).
Now onto that label. I am going to do extra for others later down the road, if don't mind?
First line, make more since if mean 86*F, water freezes at 32*F.
Seriously, in Winter I would not suspect the pipes and the water to get that warm, in the Summer my water comes into the garage about that, then before moved it out of the attic, get to about 140*F, would turn off the water heater in Summer.
Second and third line, Laundress is apparently the cat's meow for wool laundry soap and conditioner. Be warned the cedar smells nothing like cedar, more like a fresh moth ball. Soon dissipates once dry, though opening the washer can be overwhelming. I am of the understanding regular softener isn't correct for wool and now that have used their conditioner, the sweaters feel softer. I am even thinking got it cleaner, as only wore the pullover about a half dozen times though the water turned dark grey when rung it out.
Fourth line, basically don't go crazy on stomping and twirling with the laundry stick.
Fifth line, my method is to gently pull out of the water, making a fist around the item squeezing out the water. Will take several repeats and can be tiring to the shoulders holding up a heavy wet sweater. I try and start at the collar, then the whole working down, then once out of the water, separate the sleeves and wring them each, then the body (meaning two cycles).
Sixth line, meaning block the sweater, in other words, lay it flat, smooth it out, and shape to the original. Some even measure before washing so can stretch to the same.
Seventh, that is interesting. I would then transfer from the blocking surface to an oven rack, can't think of anything else clean, large enough, and flat.
Hope this helps and can be understood, I am half asleep...