Hmm... He ran a 4.49 40 last summer, so it's the worst idea. If he could trim down from the 245 lbs they have him listed at, he could possibly knock that down a little more too. Otherwise, he's solid at running routes and has good straight-line speed, so he could be pretty good. As many reports have stated, he could be very much like Aaron Hernandez was in Meyer's Florida offense.
Per Urban Meyer, he said in today's media day Stoneburner won't be a Santonio Holmes mold receiver, but much like how Hernandez was in the UF system (as you said) where he can be deployed all over the field and get touches. Plus, Stonebruner played WR in high school, which shouldn't be too unfamiliar.
Having Noah Spense, Michael Bennett, Sevon Pittman, John Simon, Jonathan Hankins and Adolphus Washington rotating among the DL is asking for a top 5 run defense in the nation.