The biggest problem you have is where Antara is. Once Japan takes over Antara in early 1942, all building stops. Any ships that survive the invasion would retreat to either US ports or Australian ports. These ships you are posting as being completed in 1943 just will not exist.
I've been spending lots of time trying to think of how the rest of WW2 would play out for Antara. My first thought would to have Japan eventually withdraw their ongoing invasion after a couple of months due to Antara's powerful army. But if that were to happen it would mean that Japan suffered too many losses and couldn't keep fighting, basically making them even weaker by the time the US enters the war. If Japan retreats, Antara can resume production of new warships and such, but by then Japan is already too weary and the war would end a lot quicker. I don't really want that
My original idea was not to let Japan occupy the whole of Antara for too long, hence why I have ships designed after 1942, but the idea of the Antaran army and navy having to return to their country later in the war to take it back sounds really interesting! But this means I might have to ditch my newer designs. That would be fine with to a certain extent because I love prewar ships, especially cruisers and battleships. I was also gonna design a super battleship to rival the Yamato, but I don't think the government could've even afforded it
Also if the Antaran navy needed to stop at US ports, they would no doubt later be outfitted with American equipment, which would make for some interesting designs.