I'm thinking I would just dunk it in boiling water and scald it like my mom did chickens when we lived on the farm. The feathers come right off.
IIRC you don't necessarily want the water to be boiling. I think the ideal temp is around 160ish degrees. You keep dunking it in and out of the water, leaving it submerged for around 5-10 seconds each dunk, until the tail/wing feathers pull out with minimal resistance. This is the way I have done it with the 5-10 chickens I do per year that my wife raises.