If you really need to get your gallic junker with junker guard ID into Puerto Rico to get it re-fitted, you can probably do so. Just don't trade or linger. Setting up is somewhat OORP anyway. If you get stopped by someone, you can just tell them that you are re-setting up the char. Just don't attack anyone or trade, and keep a low profile
*Goes off to get more gallic junker 'guard' ID's, and to bring a guard salvage frigate to Puerto Rico for the sole purpose of getting new guns*