412 Spares sources

[Peter.Kent]

The snag with the existing calipers is that the pistons are chromed steel. The slightest little bubble of rust and you've got leaking seals. ACCS do stainless steel replacements together with the seals (and pads). BCL, I believe, offer four pot upgraded calipers. I have never encountered brake fade with the three pot calipers. You will find much more to enjoy at the back end. The calipers suffer from the same problems and if memory serves, there are replacements/spares from Rolls-Royce sources. But, ACCS supplied me with nice shiny new pistons etc. The real joy is the dangly bit which purports to be the hand brake caliper. They give no end of problems and the fiddly little pads wear very quickly if they rub. They are expensive to replace and not always available. You are quite right that engine and gearbox bits are stock Chrysler items: either BCL or ACCS supply.
Best to describe the interior handles as Unipart! As Kevin says, widely fitted (including to the old Leyland Sherpa van). Not sure about your twin headlamp replacement. The big rectangular ones on earlier cars are from an Opel. But there are Lancia parts: the exterior handles and boot lock (may come from the Gamma) and the rear light clusters which are from the Beta coupe. Peter