So the Mighty M neck is nice except for one thing... there's a tiny knot hole in the headstock! Not a HUGE deal, I've seen it on MIAs. Probably won't show when the decal is on.
It dropped right in. I used the 22 fret neck so the "ledge" will cover square cut in the pickguard. I think once it's together with another neck it will be a very nice replica. Just a matter of what pickups and bridges to use now... and a total re-wire of course.