David,
Anything is possible, but Alembic's construction methods would make it a difficult and/or costly process. All Alembic basses are either neck-thru or set neck- no bolt on necks (I'm assuming that the graphite neck you have is a bolt-on?)
I guess it would be physically possible to tear apart a bass in order to install the graphite neck, but if you're interested in the Alembic sound with an aftermarket graphite neck, I think you'd be better served to find a suitable aftermarket body, install Alembic electronics and then attach your bolt-on(?) graphite neck.
Toby