Jagwire makes nice shift gear kits, something like this will suit:
https://www.amazon.com/Jagwire-Shift-Cable-Black-Size/dp/B077F9ZMKF
thanks for the instructions! does this kit look like it would include everything i would need to replace this? https://www.amazon.com/dp/B077F9ZMKF/ref=cm_sw_r_apan_glt_fabc_0R5WWDKKX0TVKHWZH63P?_encoding=UTF8&psc=1