Simplest thing would be have an off server price chart for specialized BCH and up...
Allow everyone the ability to pilot 1 and only one ship from the specialized bch, dn, bb list for the server, no exceptions..
no specialized bch, dn, or BB can be in same hex at same time... Unless it is a supply base at least 5 hexas away from the war front.. this will help eliminate drafting 2 DN's into a mission by mistake.
Player will have to have the PP ammount accumulated to purchase the ship of their choice and the RM would have to be notified so that they can coordinate the ship deployment.. If player can not follow the rules or follow RM direction.. the ship is eliminated from the player and player loses the PP for the ship and supplies.. now this would require DB edits, but it allows for fair play and honesty..
once the ship is destroyed, the player can play any ship from Frig to normal or line production BCH, but Specialized BCH and up are forbidden..
this allows everyone a fair chance of flying a ship and once the Big Iron is eliminated on the server, then it is a cruiser fest.. it also promotes hunting parties that will take 2 or 3 CB's against a BB and have a chance of victory...
also this will keep in play the established disengagement rules.. if the DN or what ever is caught in enemy territory, it must fight to the death.