Im new to Vw's and was wondering: I have a 58 shell with a 68 chasis, what model shifter do I buy? Do I buy a 58 model shifter or 68 model shifter?

Do you want to keep it stock?

Nah I want to buy a scat shifter

Well you'd probably want the later shifter, i think the difference is the bend in the shifter... Earlier pans had the shifter positioned further forward than later ones. So they bent the shifter back so you can reach it more comfortably. I think it won't make a huge difference either way you go really.