I don't know whether you want English feedback or another language, but some of Ivona's voices are quite good (no TTS voice is perfect).
Be sure to get a SAPI5 voice. Text Aloud sells
individual Ivona SAPI5 voices for US$45, which is not a terrible price.
Once you've installed the voice, it should show up in the
TTS plugin window the next time you open VC.
You can also experiment with adjusting the voice synthesis
rate (speed), pitch, and so on if you are not happy with the default settings.
(e.g.
http://voxcommando.com/forum/index.php?topic=2138.msg18558#msg18558)
You could always use TTS for some situations but record some of the feedback, of course.
I cannot stop you from feeling overwhelmed, but I think if you are not in a rush to finish your ambitious project you will have more fun with it.
Speaking only for myself -- finding a solution to a challenging problem and learning new ways to use the program is pretty much my favourite hobby.