dont disband eles, use them! they'll allow to take a settlement the same turn and while Phyrros is alive you should overrun all of Greece with their help. Phyrros + eles an explosive combo. i took all of Greece with Phyrros still in charge.
it is cheaper to maintain them than recruit a new. and they will get some experience in the meantime too. just dont (even if you can afford) retrain them until you got all of Greece.
disband fleet and withraw form Taras destroying everything and putting tax on VH so it can rebel. it will let Rome grow stronger in Italy while you expand in Greece and Anatolia and will assure an eventual challenging encounter with Rome.