Well, Wasa was meant to be the King's flagship and host only the highest ranking types aboard, and the decor was meant to be suitable to the "station" of those nobles and aristocrats.
Ship building back i nthe day was manpower intensive, but manpower was plentiful. Master had journeymen and Apprentices. You could hire up a couple hundred guys to do all your carved and gilded works.
You would use between 8 and 10 guys just to build a single frame, and you wanted three frames building once the keel was laid.
While all these guys are busy, there are people going over all the wough sawn lumber for the hull, decks and the like, and the spars were being roughed out. (If memory serves Wasa's mainmast was made up from either 9 or 11 pieces and bound to create the spar that would then be fit with cheeks, top, etc.)