Great, hope u share the results of your researches with us one you finish
here is your answers (please note I am not very good at Sahidic so you better verify all my translations before using it)
ⲀⲚⲞⲔ ⲀⲈⲒ-Ϯ-ⲂⲀⲠⲦⲒⲤⲘⲀ ⲚⲎⲦⲚ ϨⲚ ⲞⲨ-ⲘⲞⲞⲨ. ⲚⲦⲞϤ ⲆⲈ ⲈϤ-ⲚⲀ-ⲂⲀⲠⲦⲒⲌⲈ ⲘⲘⲰⲦⲚ ϨⲚ ⲞⲨ-ⲠⲚⲈⲨⲘⲀ ⲈϤ-ⲞⲨⲀⲀⲂ.
I i(past tense)-give-batism toyou with/by a-water. he however he(present)-will-baptise you with/by a-spirit he-hallowed (a hallowed spirit)
ⲚⲦⲈⲨⲚⲞⲨ ⲆⲈ Ⲉ-Ϥ-ⲚⲎⲨ ⲈϨⲢⲀⲒ Ⲙ-Ⲡ-ⲘⲞⲞⲨ ⲀϤ-ⲚⲀⲨ Ⲉ-Ⲙ-ⲠⲎⲨⲈ Ⲉ-ⲀⲨ-ⲞⲨⲰⲚ ⲀⲨⲰ ⲠⲈ-ⲠⲚⲈⲨⲘⲀ ⲈϤ-ⲚⲎⲨ Ⲉ-ⲠⲈⲤⲎⲦ ⲈϪⲰ-Ϥ ⲚⲐⲈ Ⲛ-ⲞⲨ-ϬⲢⲞⲞⲘⲠⲈ
in-this-moment however, while-he-coming toward the-water he(past tense)-saw the-sky(pl)/heavens they(past)-opened and the-spirit he-coming toward-down upon-him like a-dove
ⲀⲨⲰ ⲞⲨ-ⲤⲘⲎ ⲀⲤ-ϢⲰⲠⲈ ⲈⲂⲞⲖϨⲚ Ⲙ-ⲠⲎⲨⲈ ϪⲈ ⲚⲦⲞⲔ ⲠⲈ ⲠⲀ-ϢⲎⲢⲈ ⲠⲀ-ⲘⲈⲢⲒⲦ ⲈⲚⲦⲀ-ⲠⲀ-ⲞⲨⲰϢ ϢⲰⲠⲈ ⲚϨⲎⲦ-Ⲕ
and a-voice she(past)-happened from the-heavens saying: you being my-son my-beloved which-my-will happen/exist inside-you
ⲘⲚⲚⲤⲀ ⲚⲤⲈ-ⲠⲀⲢⲀⲆⲒⲆⲞⲨ ⲚⲒⲰϨⲀⲚⲚⲎⲤ ⲀϤⲈⲒ ⲚϬⲒ ⲒⲎⲤⲞⲨⲤ Ⲉ-Ⲧ-ⲄⲀⲖⲒⲖⲀⲒⲀ ⲈϤ-ⲔⲎⲢⲨⲤⲤⲈ Ⲙ-Ⲡ-ⲈⲨⲀⲄⲄⲈⲖⲒⲞⲚ Ⲙ-Ⲡ-ⲚⲞⲨⲦⲈ
after they-arrested Iwhannas (Jhon) [ after Jhon was arrested ] he-came ⲚϬⲒ jesus (jesus he came) to-the-galilia he-proclaiming the-ⲈⲨⲀⲄⲄⲈⲖⲒⲞⲚ of-the-god