If it is in good condition, it is probably worth every penny. I have an early 540X single shot I bought in 1969. I really like to use it for target and for tree squirrel hunting. It is more accurate than I am. About a month after I bought it, I entered a club match, a team competition, and shot 200-7x with it (metallic sights). It was my first ever small bore competition (a 100 yd prone match).
I'd say it is not equal to an Anschutz 54 match rifle, but it is a very good rifle for what you will have in it.
EJ