With turbines, trying to take the low buck approach, and flying marginal or questionable products is totally contrary to what it should be. I am on a budget too, but I do buy the best parts I can for the money, even if it means saving for 6 months to buy stuff. Why would you have $4000 in airframe and engine, yet use $8 Hobby King servos? That not only is a recipe for disaster, its flat out dangerous, I don't care how many great reviews and stars the item got on a web site. It puts the pilot, spectators and everyone around the flying field at risk, and for what? $100-300 for servos....really? If you find you can't afford it, please don't enter the turbine realm, you can be just as good a pilot flying a lot less expensive and dangerous airframes. Jets by there very nature demand the very best, in pilot skills, building skills and maintenance. Do not settle for anything less.