Allow me to also recommend the guys at
30th Street Guitar. I brought my 1980 Rickenbacker 4000 in to them to have the neck completely reset, and then have the usually new strings/complete setup work done. The guy who did the work (whose name, I'm fairly certain, is Matt) not only did a phenomenal job, but charged me a price I thought was ridiculously low. After he removed and reattached the neck, put the new strings on, and set it up and intonated it (not to mention that he then seemingly went over the bass with a fine tooth comb and cleaned / fixed any little issue it had without my asking him), he still charged me the price of $135 he quoted me (that includes the new strings).
I can with experience that he knows his way around Rickenbacker dual-trussrod necks quite well, so I'm sure that will extend to faithful Ric reproductions.