A Few New Fanfics and Comic Series' I Might Make

First multicups, then reality parodies, and now I'm entering the world of fanfics and webcomics. It's not likely that I'm going to make all of these, but I might as well get my ideas out there anyway.
1. Koopa Khronicles
This fanfic series will follow the lives of the Koopalings when they aren't helping Bowser kidnap Princess Peach. There will be ten episodes with three segments each, meaning in a way, there will actually be thirty episodes. Twelve of them will be new stories, while the other eighteen will be rewritten versions of episodes of the Mario 3 cartoon, because as much as I love it, it could've been so much better.
2. Yoshi's Adventures
This series will take place in another universe, where Yoshi's Island is much more primitive. It will follow Yoshi and his three friends, each with their own distinct personalities. Unlike Koopa Khronicles, which will have thirty episodes, Yoshi's Adventures may only have ten, since it might not be as popular as the former.
3. Super Mario-kun (English dub; title subject to change)
No, I don't speak Japanese, and no, I won't be translating it word-for-word. I will however, be recreating this as a webcomic, using each volume's description on mariowiki.com to help me. Unlike the previous two series', I will only be creating this in comic form. And on a side note I have no idea how many episodes there will be, because it has all these story arcs, and each volume has a bunch of chapters, and... the whole thing is just a giant mess.
So anyway, which of these should I do first? Are there any that I should scrap completely? Let me know your thoughts.