Translation of "if nothing else" into Basque

When I was a teacher, I used to tell my students: "Ask Olentzero (Santa) for a book, or buy it at a second-hand store at least. That way, maybe, just by seeing it on the shelf, you will read it one day."

Irakasle ibili nintzenean ere esaten nien ikasleei: «Eskatu Olentzerori liburu bat, edo erosi bigarren eskuko dendan besterik ez bada. Horrela, akaso, apalategian ikustearen ikusteaz, egunen batean irakurri ere egingo duzue».