Ur probably right about the Harpoon & Phalanx, as has been discussed elsewhere in this thread (round about post #1,000). The Guns are coming straight from the MSI Factory, & it's the T-23's that are being brought up to T-45 standard..
IPMD & FBNW are similar, but not the same. FBNW, means that it's just a case of getting the kit & fitting, as the cabling / services & seat / mount are all present. Great for a Falklands style, get the ship ready to fight ASAP, routine. Just rob it / take it from stores & fit it. Job done !
IPMD is basically space provision. Design calculations take into account that room will be required on cable runs, spare spaces & capability to absorb the extra load are "built in" to fuse panels, physical space is allocated to take equipment, but lots of work would still need done, so no quick fit / fix.
Too true ! ANYONE I've spoken to whose in the Navy, or been onboard the ship during her periods at sea, can't praise the ship enough.
SA