I found this on the Rebel Brewer site which I'm sure you saw:
Total Nitrogen: 11-12%
Soluble Nitrogen Ratio: 37-44%
If we were to assume that 79-80% number was fine-grind dry-basis it'd represent 79.5% the potential extract of sucrose which is 46 points/pound/gallon so you'd be looking at 1.036 or 1.037 somewhere in there.
The SNR number reaches to the high end of what you'd like to see but should be fine.
The weird number here is total nitrogen - I think Rebel Brewer meant to write total protein. If not that is one point of which to be aware. According to Noonan, "For all-malt beers, protein values exceeding 12% (1.9% TN) indicate that the beer may haze or present mash runoff problems. European lager and British ale malts are usually below 10% protein." (http://www.brewingtechniques.com/bmg/noonan.html
Hit up Rebel Brewer - they obviously have the total report - I can't find any info about this malt floating in the ether of the internet.