Ian at Forgotten Weapons has released another of his excellent videos on older firearms. This one is on the Spanish FR-8 Mauser. I remember seeing this for the first time in the early 1980s at a local gun store for about $150. Of course, I should have bought it then because by the time I bought my own FR-8 the price was $350 which I thought reasonable.
To me the best feature of the FR-8 is the sights. Unlike your typical Mauser notch and post sights, the FR-8 has a protected front post with an adjustable ghost ring sight.