It definitely needs some more "polishing"... Of course, yes, you pretty much need sound... Even a most terrible sound track is better than none at all. Yes, I mean, even out of sync, off timed... crappy in every possible manner, a sound track can't help but add to this.
Okay, then there's technical difficulties... These happen "in the field". You just remember to relax and breathe. You will adapt, improvise, and overcome such obstacles. Tomorrow's coming along, like it or not, so I promise you. YOU WILL GET THROUGH THIS.
I'm notorious (at least by now) for the same mantra, "Art is not for the faint of heart."... You just keep working at it until every little tid-bit, every aspect, is exactly as YOU WANT! That's the bottom line. That's the way it must be, and this is an effort of will, your will upon something otherwise lifeless in this world of ours. Don't be afraid to stretch, and continue.
Frankly, I see a great vision from you. If I'm right, you've got a real and positive message that's worthy of spreading to millions out there. PLEASE!!! Step up and just work at it. You can message me, if you need. I've contacted you now. You know how to find me, track me down... whatever. I do some voice acting, and I can certainly see the merits of your work. We'll negotiate prices and other stuff... eh... it's not even that important for a proper student of art. Believe me, I understand what it is to be a "starving artist"... Anyways, it's a great idea to start with... Get a little more work in on it, and if you need you can find some help around here. When you come up with a final polished version, a "finished product", I'll be only too happy to amend or add to better marks for you then...
You have a great day, now... ya' hear?