The 44 gold should do well, back when the stingray was designed the P60 was a 10-12lb turbine. Look at the YA website for this plane, it calls for a 10-12 lb turbine. http://www.yellowaircraft.com/jets/stingray.htm

I am building a Stingray and I am planning to try the new K60G in it. It is a little more power and weight than the 44 but less power and weight than the P60 and also fuel draw  is in between the 44 and P60. Everything that I have read is that this a  very nose heavy aircraft, plan on air tanks in the nose and batteries in the tail. I am planning to use the rudders as additional air brakes along with the brake on the top of the fuse and the barn door on the bottom. but if you are heavy, it will have a nasty stall when you get it to slow. This is all only what I have read by reading every single thread I can find about the Stingray. Like I said, I'm still building mine. I am shooting for a dry weight of close to 10 lbs, to help landing.