Probably should blind burr anyway. In our institution he would get an expolaratory laparotomy. Our CT scanner is two floors and 100 mtrs away from our resus room. The emergency OR is 20 mtrs only. I would balance this against his apparent CVS stability.
Stability implies more than one measurement.
To be stable, requires several measurements nearly equal. Nonperfusion would be outside these limits. The base deficit is a good guide to perfusion no matter what the measurements of vital signs are.