Futaba. I swear by Futaba products and this is one of their best four-channel two stick radios out there. You will need at least three channels to run the Tamiya High-Lift but Futaba does not make a three channel two stick radio (that I know of).
HiTec HS-645MG. That's the servo I use in my Axial AX10. It's a great servo; pretty quick speed for the amount of time it needs to generate all that torque.
HiTec HS-5645MG. Or you could go a step higher and purchase this servo.
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If you're going with a mud/trail truck then why do you want a stick radio? A stick radio is more for crawling than it is for trailing. A pistol would do you better for a mudder since you will need a faster response time that a pistol grip would allow you to have. Sticks have some slower response and are mainly used just in the flight hobby because they don't need that fast or jittery of reponses. Just my $0.02.