This company covers many needs. From Trim to foam rubber seals, to lights, to fuzes, to bulbs, etc. Check their web site. It offers a lot of items that might help the owner of a vintage Lamborghini.
Clutch automat: Listed for Triumph Stag und MGB-GT V8. Attantion, should be an original AP Device (no Chinese stuff, or "alternative specification) . The original AP device is absolutely identical (technically and optically) with the original automate, except to irrelevant details. Should look like in the image shown here.
Clutch plate: Sachs / AP Part No.: 1862977001 . Fitted to some models of Iveco Daily I and II, but always refer to the parts number. AP is NOT AP Racing. Costs typically around 80.-- to 100.--.
In California. This company can rebuild most clutches, including the pressure plates and disks. Recently added Kevlar facings to their inventory where original materials were no longer available.
Here is their website: http://www.pistonispeciali.com/EN/cars.htm#.XMjVjqR7mUk They produce custom pistons for most of the early Lamborghinis. In Turin, Italy