Hey brosky. Tower is having a one day sale and I thought of you when I saw this. Use code ONEDAY to get this one for $38.
https://www.towerhobbies.com/product/d645mw-standard-digital-high-torque-metal-gear-servo/HRC36645.html
If you can run it at 7.4v, the speed is .15 sec, and torque is 199...