Difference in G23 coastal edition to standard closed loop

[Crossy]

Gday Nautique fans im after a bit of knowledge between the differences of the G23 coastal edition to a stardard G23 with a closed cooling engine. I just purchased a 2016 G with the supercharged XS7 closed cooling block and being only 10 minutes away from a salt water bay here in Melbourne i will be throwing it in there from time to time. The only information I can find on the differences from the two is that the coastal edition has different maps, stainless struts around the boat and the steering cable is enclosed, is there any difference other then that ? Is the block the same ? I.E sacrificial anodes? Coatings on starter/alternator ? Ect ect I really want to get it the best I can. Im putting on a flush kit on it right away so washing it and running it with fresh water straight after will be standard procedure but to much protection is never enough dealing with salt water

[GMLIII]

I have a coastal edition and it already has a flush kit on it, sacrifical anodes, has bow drainage system eliminating water from flowing into the engine area if the bow it tipped in the water, block is the same