[Techno Duck]

I resealed mine using a generic viton o-ring kit. Its not too difficult to take apart, you just need some snap ring pliers.

I rebuilt a few 944 and 951 throttle bodies years ago using a kit from Arnnworx.. The 911 throttle body is exactly the same procedure wise. A good quality o-ring kit is kind of expensive... but honestly its probably less than $10 in parts to do. Unfortunately i don't know the sizes exactly that i used.