There are lots of spoke-lengh calculators out there, basically all giving the same information, and you should be able to find the Deore hub in one of them. If not, my guess is that flange placement is probably the same for Alivio and LX (the groups just below and above Deore, respectively) and you could extrapolate from those hubs.

But I'm worried that you're already on the wrong track here. For a front hub that's symmetrical, which they basically all are (and I've looked up the Deore model that you have, and it appears symmetrical), your spokes should be the same left and right. Just how did you get different spokelengths for left and right side spokes for the front wheel?