The serial number points that it was manufactured in 2004, but if you get on Martin's home site and click on catalogs. Go to the 2003 catalog, pan down to the Phantom II and see if you can tell us which cams are on your bow. There are too many cam options for me to take a guess at anything right now. However, if none of these cams are what you have then go to the 2004 catalog and check out the Phantom there. There are three cam options for 2004 and all these have rotating modules already on the cams and you don't have to have a different module; just change to a different position.
I'd like to know if you plan on shooting the bow with fingers or release. This makes a difference on the draw length selection. Normally I found years ago that when going from fingers to release it's best to shoot about 3/4" less draw length on the bow. This is due to having a smaller radius where the release hooks to the string as opposed to fingers.
Also, while your on the home page compare the tech info to the bow you have. Again, refer to the 2003 version for now.
If You're Not Living on the Edge You're Taking Up Too Much Space
Martin/Rytera Staff Shooter
PSAA Life member, UBP Life member
PADI AOW Diver