i dont think there is anything we can do about cap ships.....removing them isnt an option, ppl will save for longer to get 1 and you cant get the admins to go through every player file (there must be hundreds).
mabey to purchase a battleship you have to be full freindly with the faction and have their id (if its possible to do that). That would ruin the ship allocations for the Shadow Stalkers Organisation that i suggested though.