I going to pull the trigger on the Tekno, but I need to figure out my motor/esc choice?

So far these are it:

(#TT2325) - Tekin 1/8 RX8 Gen2 Brushless ESC/4038 Motor 2250kV ($309)
(#010-0145-01) - Castle Creations 1/8 Mamba Monster X WP ESC/2200kV ($239)
(#010-0139-00) - Castle Creations 1/8 Sidewinder 8th ESC + 2200kV Motor ($159)

Here are my other items:
Tekno RC Pinion Gear 15T M5(MOD1/5mm Bore/M5 Set Scrw)
Tekno RC Spur Gear 44T Hardened Stl/Lghtd/EB48/SCT410
Tekno RC Aluminum Servo Horn Double Hole 24T Spline
Hitec HS-7950TH HV Ultra-Torque Titanium Corless Servo
Tekno RC Shock Cap Aluminum EB48/SCT410
Tekno RC Steering Servo Brace EB48/SCT410
DE Racing XD Rear Skid Plate Tekno RC EB48/SCT410
Pro-Line Shockwave 3.8" MT Mtd F-11 17mm F/R
Pro-Line Extended Front/Rear Body Mounts SCT410
Futaba 3PRKA 3-Channel FHSS System