I found a set of 7 + 9 x 16 BBS style three piece wheels - from an early 944. THey seem a good price and from what I can work out I think they'll be fairly light.
Anyone know anything about them or any reason why they might not be a good idea for a 1981 SC? (other than that you don't like the look of them)
Here's the site...
http://www.imagewheels.co.uk/pages/general.html
They're certainly not cheap new. I was thinking about powder coating the centres black.