Just read another response below on the cross matching of parts. He has a super point. When stationed in Germany, my received an inheritance that allowed us to buy a 1977 Porsche 911 2.7. The first time I had the brakes done it was very pricey. About a year and a half later it was time to do them again.

I decided I should do the job myself, so I hied myself down to the parts store. There I met a wise old man who pointed out that the pads from a VW would fit one end and an Opel for the other. This included calipers, etc. Ditto with oil filters etc. Saved a ton of money as long as the old guy lived. Sadly like all of us, he took his vast knowledge to the grave with him.