I have recently listed some useful NOS parts on Ebay.co.uk
Items available incl. OEM large inner front roll bar bushes, S1/2 saloon single carb air cleaner gaskets, series 2 brown plastic petrol caps.
I also have a few Spider S4 and Alfetta parts listed.
Will be listing a few more Sud items over the next few weeks.
Link to one of my listings:
http://www.ebay.co.uk/itm/Alfa-Romeo-Al ... SwhOVXd5gJ