Re: J Custom RG8327 Neck- PLEASE HELP
I shot you a reply on SS.org as well, but in short if you take a 5 piece 1527 neck, pimp out the fretwork, inlays(depending on model), and fingerboard edges, you pretty much have any post 2004 JC7 neck. (Generalism, but its not easy to walk into your local a_mass_musicstorechain_01 and grab a JC7 off the shelf for comparison.)
Old UV necks and 540S7 were the thinnest Ibanez 7's I ever had my hands on. Tolerances also seemed a little wider in Fujigen back in those days as well so you might want to try a few if possible to get a firm idea of the norm.