I definitely can recommend the HBL method as it contains not only a better kernel exploit than ever before but it's also one click and you're in it so you can straight launch Loadiine GX from there.I was just trying to load gx2 which has loaded for me hosted on my computer just fine. Maybe my files are outdated or something. I'll try some things out. Thank you.
To do so just get yourself the newest HBL zip (RC3 actually) and use the included www folder. Nothing else is needed.
The HBL itself goes to your SD card of course where Loadiine GX is already waiting:
SD:\wiiu\apps\