I had a set of EMGs in a 92 RG550 for a short time until I came to my senses and installed some DiMarzios. I have no issue with active pickups in the right application, but it just seemed too wrong in a 550.
Anyway, the point is that I had no trouble the pickups fitting. Of course, a 92 versus an 01 might be no more help than a reissue versus the 01, who knows.