You likely won't get much of a response for two reasons:
1) all the online calculators out there require accurate hub and rim measurements, and
2) no one wants to give you wrong information that would cause you to waste your money on the wrong spoke length.

What I can say is that when I use the damonrinard.com spoke calculator or the one from the bike school somewhere in the northwest (slips my mind at the moment), the resulting spoke length always seems to be 3mm too long. Your results may vary.