πολύ … τι κακῶν, a large measure of trouble; cp. Tr. 497“μέγα τι σθένος”. After “πολύς, τις” has usually a limiting force, and occurs chiefly in negative phrases, such as “οὐκ ἐν πολλῷ τινι ἔλασσον” ( Thuc. 6. 1), “οὐ πολύ τι διαφέρει” (Plat. Rep. 484 D), “οὐ πολλοί τινες”, etc.
ὑπερεκτήσω (a compound found only here), above what was necessary.