the kernel exploit here should work for 5.0.0 (the OSDriver option)
http://www.wiiu-info.fr/exploit/
and use this version of cafiine, it worked fine for me on 4.1.0 and apparently works for 5.0.0 too
https://gbatemp.net/threads/wii-u-hacking-homebrew-discussion.367489/page-526#post-5653329
afaik there is no pygecko for anything other than 5.3.2 so you should really try getting a game to update to 5.3.2 in the long run
Thanks for the files, i'll try them when i get home.
I'm waiting to buy Splatoon (contains 5.3.2) but i'm currently broke