You might want to consider treating the whole project like you would a polymer plate and engraving around your text block.
That way you can do all your typesetting in illustrator (or whatever) and then just print it.
Trying to print individual wood blocks and stick them down in perfect alignment sounds crazy making to me!
It is basically what I did here:
I milled a Delrin block that when combined with the early proofgrade plywood I had made it exactly typehigh, but you can certainly get there by stacking things up.