I'm a uk based animator who's produced an entire 36 episode series for the BBC in just under 3 months, so your deadline is possible - depending on exactly what you want to achieve.
I also have my own children's channel on youtube which currently has over 15 million views so i've got a pretty good idea of what works in that format too.
Could you send me an example on youtube of something that has the same look you're trying to achieve?