For almost any age you can probably get a lot of work by keeping things relatively small. The Leopard CV is more than enough to overpower any jumpship, the squadron can easily deal with most common droppers, even an overlord with all 6 ASF would not stand a chance.
Sure you can participate in larger naval engagements but you can also easily get hired on for patrols, customs work, garrisons, and losing a single dropper is something that can, potentially, be replaced without the sort of wealth reserved for planetary governments. Cosy up to some of the larger merc groups and they'll hire you on to run orbital/air support while they run ground operations. Your dropships are small, fast and well armed enough that they can act as superheavy fighters running the superior dropship EWAR package to cover the smaller fighters and small craft. Additional fighter and small craft frames can be carried in the cargo carrier allowing mission specific fits. The droppers run from fairly common to ubiquotous with nothing too high tech meaning spares and supplies should always be easy to source.
DS1 - Leopard CV - Blackwater superiority squadron
DS2 - Leopard CV - Multirole squadron (external ordinance carriers)
DS3 - Leopard CV - converted to 4 small craft bays - boarding actions, resupply etc
DS4 - Avenger - Tip of the Spear/high altitude bomber
DS5 - Buccaneer - keep out of trouble, carries spares/supplies etc. Can be refit for superior survivability, e.g. Fed Suns refit.