I have worked in the YouTube scene for over 4 years now, I have helped channels reach 12,000 subscribers in only a months time. I would be fully dedicated to making this channel work and run around the clock, the videos on the channel would be uploaded for peak hours on youtube (Sunday mornings).
Some video ideas I can do:
Traveling: I live on the east coast of the United states, meaning that with one train ticket I can be in famous cities like New York, Philadelphia, Baltimore and more within a couple hours, I could film 2-3 videos in each location and run a theme of the month on the channel.
Food: Vegan food, Vegetarian, healthy food videos are the key to viral success because there are not as many of those recipes out there as there are for the "normal" eaters.
I can go into more details in a private message on all the concepts and ideas you listed plus some of my own!
(My milestones state 12 weeks of videos, but we can talk about more for that price in an instant message, can't wait to hear from you!)