From: Alien spacecraft
so i would have to figure what its armour rating ,speed,durability
etc, etc, etc. find or create a graphic. determine upgrades and or conversions. then add it in a mod folder?
Yep, though i'm still puzzled why you'd go through the effort. If your thinking along the lines of her being "re-converted" into a battleship, I don't see the USN expending the resources and dockyard space to produce what would be essentially a slow and weakly protected and armed battleship by modern standards but with a high cost of operation and crewing. USS Wyoming, also converted into a training ship, later an AA "anti-Kamakaze" training unit, also was never seriously considered for re-upping to battleship standards.
Unlike Wyoming, its not clear if Utah's belt armor was removed after her conversion to AA training ship. Her deck armor was not upgraded and had to be "augmented" from being damaged/pierced by inert iron bombs by the use of huge timbers placed on the deck. Her Conning tower was in place at least up to the point where she was to be made an AA training ship (since the caretaker crew reportedly fled to the tower during "air attack simulations")
Thats why in the Stock and AE stock scenarios, Utah is not represented and is essentially considered 'sunk' at PH....a non-combatant never to be fully raised or salvaged. She wasn't even worth that effort unlike the more powerful Oklahoma which still ended up never being put back into commission.