Speech lab machines are set up to do this, but they are slow, though even the autolabelling, the longest part, only took me 10-15 minutes on those machines. Don't worry too much about recording quality, as long as its basically understandable, don't worry about background noise. For interest you could try delivering it in different style too. Uniphone synthesizer, the build process is similar but a little different.
Details however are in the festvox document.
Build the lpc coefficients so we can do ptich and duration modification.