great write up. I actually used this over the weekend to replace my OFH gasket. Although I found out that my coolant was leaking from the coolant hose from step 20a, the one with 2 bolts attaching it to the head because the o-ring and its fitting were deteriorated.
One thing I do recommend to anyone planning to follow this. To make everything a lot easier(referring to the aft bolts on the manifold and engine cover), go ahead and remove the window sill cover(that the cabin air filter sits on). It takes a few minutes and gives you so much more room. To remove this, refer to any JB4 installation guide. If i remember correctly, it is only 6 screws/bolts for the cabin filter, and 2 for the window sill cover and then it pops right out.