Didn't Have key for mine and I drove a good socket over the lock like 87 blown stang did. Works like a charm. To get lock out of socket, just put socket in vise and use punch to knock wheel lock out.
I'm saving also. After everything I've researched, I'm going to go with the Kenne Bell but can't decide on the 6 or the 9 psi kit. I'm a little concerned about the 9 psi kit being it will be pushing the limit with stock internals.