Hi Ben,
I have gone through both of your video references and i must say nice choices. And what i could understand from those videos is that, both of them are two different style of presentation, first one is more of abstract style and second one is more of storytelling style, so both of them needs different approach altogether.
As you have mentioned that you want to create 15-30 seconds of video with filmmaking equipment and all, so whats your idea, you just want to show random objects or you want to tell some story of something?, because that will affect the costing and project duration too.
I think its good to discuss things out, so if want to chat, please feel free to contact me.
Hope to hear from you soon,
Regards,
Rahul