While those are good parts they might not work with the shifter you’ve got.
If the stick bolts onto the shifter housing with two bolts then you could use the handle.
The spectre shifter didn’t have a bolt on stick.
And that install kit is for a hurst. Likely won’t work with yours.
You need a hurst mastershift with install kit. The bench seat shifter handle would work to replace the stick on the hurst.
Here’s the hurst.
https://www.summitracing.com/int/par...6809/overview/
Mind you even with a shifter change your shifter throws won’t change. They’ll still be long.