Use air tools on full blast when pulling the plugs. Apparently you are less likely to break the plug off. I did mine by hand at sub 70k miles and broke two out of the 8.
thats the method ive seen also. Mildly warm motor..impact wrench/gun on the lowest setting possible to "shock" the plug. We will see lol. Gonna wait on the special tool. Its not something he needs as a daily so if its down for a day or three while ordering the tool no biggie.