I'm not sure that I'd get too excited about how far a carrier might move. Even at 30 kts it won't go far enough to be worth allowing for.
Re read the theory of PSD etc. and see how limited the accuracy really is. If you are bored, use PA31-350 numbers to calculate a flight SYD - LHI and find PSD, PNR etc. on PMQ in nil wind, 50kt westerly and 50kt easterly.