Welcome, I would contact shaun from Yellow aircraft for the turbine you would need, Just ask him for the weight and then you can make a turbine choice. Plenty of turbines to choose from and some good prices as well. I am new myself and was like you more into the scale side instead of the sport/trainer. Probably the best thing you can do is go to a jet event like I did, that way you meet the people who actually fly and have the latest info. From what I have seen and read YA is top notch and shawn is a good dude plus he is always on the forums

http://yellowaircraft.webs.com/contact.htm