I like to list my power module too, just because there are several that are commonly utilized. Also, my AT power modules provide for bass roll-off, so I don't want there to be any question whether or not I'm running flat or using roll-off when someone looks at my source.
Things to keep in mind:
The a/d in the JB3 isn't reportedly that good, so you probably do want to add the AD-20 if you stick with the JB3. If you want to mainly stealth, consider getting an m1 to cut down on gear and still get good results. The a/d in the m1 is comparable to the stock SBM-1. The phantom II isn't that much larger than the PS-2 (I listed a size comparison in one thread - search), definitely not worth the extra money, IMO.