That eBay auction is for strips of 2 different kind of steels to forge weld together into a piece of damascus.
Good luck with that as a first knife.
I actually made my first knife out of rwl34 but only because I worked at a place with its own heat treating facility.
Point of using 01 is it’s a deep hardening steel that will still produce a good edge even if your temperature is not spot on during heat treating.