ESPN has him listed at 0", 0 lbs. Link.... On his Facebook Page he appears to be a white rapper (AKA Jasper Stax) that looks like he might weigh 150 dripping wet. Even more interesting, this shape shifting beast seems to be very active in the Lego Community. Stranger and Strangerer.
I'm worried about the talent level issue here. Typically there is a huge jump between playing against NFL offenses and bowling over Junior-High players.
This was the only tape Buffalo had on him: http://www.youtube.com/watch?v=pNnx_X5ue2c&feature=related
If he's as good of an athlete as they say he is they should line him up at TE. No safety or CB could ever bring him down alone.
If you think about a "normal" person, who's lets say half that weight (224), they'd have to lose 36.5 pounds (not a perfect comparison, but reasonable enough). If we say 3-4 months ~ 15 weeks, then that's just under 2.5 pounds per week, which isn't crazy at all.