(New to MTB) Looking for help with my Dengfu E10 build

[Zayd Proctor]

42 doesnt fit your frame, only with absurd offset spacers.
what is it that you want from the bike ? mtb i would put a 36t or maybe 38t if flat country

if headset is already installed you wont need a headset cup press.

Maybe I should add a front derailleur