Guitar to bass adaptation?
 

Hello, peeps.
I don't really know if this is the proper place to post this. If not, I'm sorry and I hope the Moderators move my thread to the correct location :D

Anyway, I'm trying to make a cover for the song Oh Fionna, from Adventure Time, but for the bass (standard tuning, but I'm willing to change it if necessary). The rythm is easy, I even got two possible ways of playing, but I can't figure how to make the tabs go well with the song. Do you guys have any possible sugestions?
Thanks!