Damn... The Maks and Selukids really got the short end of the stick in your campaign, 'ey? Anyway, I, for one, would say do what you said you were going to do an conquer Greece. Give the KH and Epiros a good thrashing, then turn your gaze either to the Gauls in Europe or, if you feel ready, the Ptolemaic juggernaught. Also, once you head into northern Greece, I'd advise keeping clear of the Sauromatae's field armies if you possibly can (that is, if they decide to attack you or vice versa). The only battles you want your Cohors Reformata to get into with them are settlement battles where their HAs are effectively negated...