I have an old RG 7321 neck I've been sitting on for a few years. I was going to mod the nut to have a locking nut and I was going to put it on my RG7620, but I just don't have the time.
To anyone that wants it, it will fit a RG7620 or RG7420 guitar, and has a rosewood fretboard, white binding, and it's a 5-piece neck with two strips of a dark wood on the back, I believe walnut, but I could be wrong.
My price is $100 + shipping, whatever shipping may be I'm not sure, but it can't be too much, if it's over $25 I'll eat the extra cost. I know some guys use these necks on custom guitars, so if you want it, just let me know