But.. I don?t have the measurement table that is needed to test sheets to
FOGRA39. It?s not in the software and I can?t find it on x-rite website or
searching the web!..

I will be sampling the standard Ugra/FOGRA-Medienkiel CMYk-TIFF V2.0a. It
would be similar to the ?2x_MW2_FOGRA27L_SB.txt? one which is installed with
Measure Tool, but with the FOGRA39 data.

In theory I could make one from the 1617 sets from the main lookup table
here http://www.color.org/FOGRA39L.txt if I knew which ones to use..

Any ideas?

In addition to the previous suggestions, you could calculate the desired Lab values from the ISOCoated icc profile (based on Fogra39 data)...or any other profile for that matter. Easily achieved with a software like Colorthink Pro. For example, you could drop the 2x_MW2_FOGRA27L_SB.txt files into a ColorThink Pro worksheet, assign the ISOCoated profile (or profile of choice) using absolute rendering, and export a list of Lab values that you can then swap with the values of the original 2x_MW2_FOGRA27L_SB.txt file (making sure to save with a more appropriate name). With the text file still open, you can even alter the delta E tolerance values (up or down, not adding new criteria) and MeasureTool will reflect these changes when generating a report. The benefit here is that you can customize the lab values to a specific press profile should that be desired. This can also be achieved by opening the colorbar image itself in Photoshop and assigning the desired profile (ensureing absolute values are displayed), but this requires updating values patch by patch.

There's some rounding errors involved in the above as it is icc based, but these errors are usually quite negligible toward the dataset. This is obviously less elegant than many other solutions available, but it does allow some flexibility, and is an option for verification on tight budget.