ἀκμαἶ ἂν … μόλοι seems the best correction of ἀκμαῖος … μόλοι. The phrase “ἀκμαῖα μολεῖν” is quite permissible in poetry: see the examples quoted on 196 f., and add Soph. Ph. 310“μόλις φανεὶς ι ἄελπτα κἀδόκητα ματρὸς ὠλέναις.”
ἀκμαῖος, εἰ βαίη, μόλοι is impossible: “μόλοι” could not stand here for “μόλοι ἄν”: see on Ant. 605(“κατάσχοι”).