Good to see you want to take action fast... heck thats great!
However...
My advice to you is to
NOT try to crank out 10 ebooks all at once, you won't end up getting anywhere trust me, you'll overwhelm and overload yourself especially since you plan on doing it by yourself.
Plus, what do you think is better, 10 crappy ebooks, or 1 great one? Not to doubt you since I don't know your experience but im assuming you may not be that good at copywriting either. So that's yet another obstacle to run into.
Good you're hyped up, but skilled people have a laser targeted mindset and work it up from there. Just shoot for 1 ebook and really do your keyword research for that niche, because in all honesty $1k per month isn't actually that difficult with your own products if you plan correctly, especially if you build a list from targeted traffic and offer them valuable content free upfront.
Always Keep this in mind: Undersell and Overdeliver- The perfect selling formula
Just my two cents