You should follow the 3.1-4.1 guide below and bring your wii up to 4.1. It has nothing but the minimum stuff to do this and will install over any ios, cios you currently have. Also, be sure to install bootmii as boot2, you said you did not want it, but if you don't install it your head is on backwards. You are blessed by the gods to have the option, don't be a fool, accept their kind offer. Install bootmii as boot2.