Psyhotic98

Hello guys so bassicly im back to game after some time Im still mr10,so a beginer my question would be how much do i need to upgrade my railjack and necramech(really dont like neither of them) to be able to finish complete quest story(i saw ill need booth to go trough “new war,call of tempestary and rest of the new quests), so i can go back to frames weapons and mods ty