ὃν χρὴ μιμουμένους εἰς ὃ δεῖ ἐλθεῖν προειθισμένους ἡμᾶς ἀφικνεῖσθαι.
Is ἡμᾶς the direct object of προειθισμένους or the subject of the inf or both? I think it is the direct obj rather then the subject of the inf but I cant explain why.
προειθισμένους is passive. ημας is in agreement with it, and with μιμουμένους, and is the subject of ἀφικνεῖσθαι.