οἱ ἡλίκοι ἐγὼ I am not sure how to decipher this. LS gives τηλίκοι ἡλίκοι ἐγώ ,
but must ἡλίκοι not agree with ἐγώ? So I would say τηλίκοι ἡλίκος ἐγώ εἰμι
I’d dare to say that it’s in plural because it takes the place of τηλίκοι: οἱ τηλίκοι ἡλίκος ἐγώ > οἱ (τηλίκοι) ἡλίκοι ἐγώ.
And οἱ ἡλίκος ἐγώ would be stranger, especially because the focus is on οἱ, not on ἐγώ. My two cents: it’s an agreement for “attraction”.
And more: in this particular passage οἱ ἡλίκος ἐγώ means in fact οἱ τηλίκοι ἡλίκος ἐγὼ ΚΑΙ ἐγώ (=ἡμεῖς), since we have γιγνώσκομεν as the main verbal form.
Hope this helps.
thank you but somehow it is not convincing.