Alot of the first steps can be skipped, i spent hours trying to patch my game files which come to find out is basically impossible, i had to reach out for help and was given a link to the already patched files and then it was as simple as plugging those into my wii. Really need better and updated guide for this. With that being said im really glad this is available, and they got back to me almost instantly when i emailed them for help.
Here is a link to the ready to go files they sent me to save yal the trouble: http://repo.mariocube.com/WADs/Customs/
Simply download the My pokemon ranch file, then re name it to Ranch.wad, and put it in your wad folder(make a folder named wad if you dont have one) on your sd card, put it in your wii, launch homebrew, then launch yawm, should open the wad automatically and then you just select the ranch wad and update it. Hope this helps people struggling like i did.