yup that'll be old enough

so yeah, you want a k-jet 8v dizzy, and the wiring loom from tci->dizzy->coil from carb/kjet 8v. also need the coil, tci plus the dizzy cap, arm and leads too as they differ. can use a 1.6/1.8 carb dizzy at a push, but the k-jet one is better matched to the gti lump obviously.
one last thing, the points coil has a resistor wire, this needs to be removed and replaced with a normal wire, plus there is a wire from the starter to the coil which needs to be removed