Umm, that probably depends on the day of the week.
I mean, the ship is supposed to have a great degree of internal modularity. Anything we might count from Sternbach or Wildfire blueprints might only hold true for a certain specific Galaxy at a certain moment. And a count of portholes would be completely futile.
That said, I'm sure somebody could do the counting from the above two blueprint sets. (But what is a room? Is the cabin of a crew member, possibly consisting of two to five separate rooms, considered one room or five?)
Timo Saloniemi