I think both options work well. I don't mind sorting through soundcloud, and if the other tracks are free to use like the ones in this pack, adding them here would make an already great list even more robust.
I'm working on the vertical slice right now, so that I can have enough content to start promoting. I'll send you the steam page (and possibly an itch page too) here when it's live. I'll possibly use one of your songs in the trailer as well, should I add credits in the video too?