A/F Ratio Gauge or Shorty Shifter

I will be getting a Kenne Bell 2.6L S/C within 3 months and I know I will be getting an AutoMeter Phantom 2 Boost/Vacuum Gauge and Autometer Phantom 2 Fuel Pressure Gauge. My question, should I get an A/F Ratio gauge as well, if so which one is best, or should I get a Hurst Short Throw Shifter.... I know that eventually I will get both, but which one should be higher on the list? I can't wait to order/install that Kenne Bell! :gringreen

Thanks for any replies as I am new to the Forum!