In the "Directions" there are none for sparging or boiling. Is that really accurate? Straight from mash to fermentation?
Sorry, I tend not to over-specify recipes because of the adjustments each brewer needs to make on their own systems. Basically, if I'm sparging, I sparge until I have sufficient preboil volume not until I run out of a predetermined amount of sparge water. Also, I don't worry about quarts per pound very much when mashing. Mix until the consistency looks right. If you need a target, use 1.5 qts/lb. But there's no problems with using 2 qts/lb. Many people who make barleywines are constrained by the size of their equipment, so they adjust anyway.
If you use more water in the mash, you'll need less for the sparge and vice versa. The mash water and the sparge water are the same; prepare brewing liquor when you start and use it whenever you need water. You can boil from 75 minutes and up. I generally do 90 minute boils unless something unusual is going on. Just adjust your preboil volume so that you hit your target based on the boil length.