STANDTO,
You'd need a completely new rear end. If you look at the jet pipe diameters of the Jag and hawk, you'll see that the jag's jet pipe is considerably larger. You need a much greater volume for reheat operations, and has to do with the need for convergant/divergant ducts and the pervert theory (Pressure/volume/temperature) All much too boring for here.
So, to sum up then...........It won't fit.
Sorry. I even started to bore MYSELF then 