Structurally, note the "clover" deck on the mainmast (aft mast). in 1941 these had search lights on each of the clover "leaves." Throughout most of the '30's these were blank.
Also on the foremast, on the left and right on the highest "true" deck level of the bridge structure, the boxlike structures are absent until only a couple of years before the attack--these are AA directors. Very noticable to anyone backdating (I'm blessed to know 2 of the guys who got out of the portside director via a line connecting them to the USS Vestal).
The catwalk decking on the stack is different; she had the searchlights there instead of on the mainmast clover back then.
On both the masttops, in '41 she had "stuff" added up there; a "bird bath" on the main mast in which there were machine gun positions, and on the foremast she had just received the mounting for an AA search radar (never got the set, ironically, but the mounting was there). As you can see, in the '30's this was all bare on top.
On the fantail, she had not yet received a crane with which to recover the scout planes. Much simpler structure as you can see.
Also on the foremast, the yardarms ("arms" sticking out the sides of the mast top) are very simple in the '30's. The PH version has VERY reinforced yardarms, each a lattice of superstructure framework like a crane. This is easily visible in the photos of her smoldering after the explosion.
One other thing, not sure what the kit has anchorwise, but originally she was fitted with 4 anchors, but after her refit in the '30's she emerged with only 3 as a weight-saving measure, I believe.
Good luck on this; I can try to help you with any questions on the Arizona.