The speeds mentioned seem plausible to me. He's a professional stuntman so I'm sure he is well used to working that kind of stuff out and doesn't need armchair critics analysing the data at the 11th hour, or giving him legal advice
I reckon his chance of succeeding with only minor injuries is quite good.
Best of luck!
(This post was edited by LukeH on Apr 3, 2012, 4:33 PM)