I have 7 endurance, and am not going to take the charisma implant. I will eventually get the caps for the monocyte breeder, so money isn't an issue. Which of these two should I take? The monocyte breeder takes a while to heal you, but is very convenient. The endurance implant increases health and poison resistance. Which one would you take?

Also, does anyone know if 7 endurance or 8 endurance is enough to fully resist the cazador's poison?