Stainless bling is not cheap, but Stainless Direct on ebay accepted my offer of £10 for 4 stainless blocks:
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=140496634877Their prices are significantly less than most chandlers.
The pulleys are for
Illusion's steering and you don't normally get a block for less than £5 elsewhere.
-Paul