I had to order a timing belt kit for the 159, so I got it from EB Spares in the UK. To make the postage *seem* worthwhile, I got a clutch master cylinder and some bleeder screws.
A shipment also arrived from Classic Alfa – handbrake cables, brake and clutch hoses, spring hats and rubbers, caliper seal kits, a clutch slave, vacuum hose, a set of splash guards, and some other odds and sods. I’m puzzled by the brake proportioning valve, as it’s quite different to the original – guessing this is all that’s available these days. Giles at Classic Alfa will get back to me and let me know I expect.
Edit: Giles tells me that they are the only available replacement, from the later model spider.